Considering the facts that I value a quality game library with games I could imagine to actually play over a quantity game library and that I would even struggle to buy a '100 hidden object games for 1$' because I don't want to have these in my library, I don't want to hear anything about shitty cards, you are certainly 'right' that we seem to be somehow 'wrong' ^^.

And yes, Shantae is most probably a very good game which probably does not fit my taste however (too cute I guess, need to play Axiom Verge instead). Personally I'm waiting for the unrevealed games, Pony Island and DOTT I've bought already for much more money, VA-11 and Deadbolt seem to be decent, maybe there will be a wishlist game revealed which might lure me to buy the bundle nevertheless.

idk what you mean, as I said the same ;p or maybe you wanted to respond to GotDayum ;p

like I said - it was a bundle that was not organised by HB but rather outside celebrtating/corresponding/name-it-whatever-you-want to real life event. Current bundle is purely HB organised that's why I said it's very unlikely to show on Steam ;)

Well, how much is the $1 tier?

Why many sg users give high appreciation and play time to mariobros-like game when this world have modern good and complex game ?

Let's take a look at a few modern games... I for example LOVE the Assassins Creed Franchise for the incredible amount of content every game has and the attention to detail that went into it but even I can't deny that you're basically doing the same thing you've been doing since AC1 over and over again.

Since you mentioned the Division... I've played it a few hundred hours with 2 buddies before they lost interest and it's a good covershooter on a huge, stunningly beautiful map BUT it pretty much plays like every other covershooter I've seen + a lot of gear grinding and the endgame content = PVP was completly broken when I last touched it.

Same goes for Gears of War or Uncharted...

So while most modern games pretty much play like every other modern game small Indie Games (like Nom Nom Galaxy, Sheltered, Papers Please) ofter dare to try out new stuff and are more mechanic / gameplay based which can be really addicting.

Edit: Also even in richer countries there are plenty of people that don't have a 1000 - 1500$ PC. I for example tend to play AAA games on console (because I know they'll work there + lots of other reasons) and mostly Indiegames on PC.

"Modern games" aren't really more complex than "old Super Mario Bros". See No Man's Sky, it's 'modern' and has a high PR budget, but there is no actual gameplay in it.
Maybe Steamgifts in particularly has slightly more people who want to play "Mario Bros" than the average web community, but there are also 'normal' people who would rather play DEADBOLT than another Assassin's Creed or Watch Dogs or Call of Duty.

Out of curiosity, how old are you and your friends? That might play a role too.

I have a laptop from 2014 maybe - Skyrim mid, Mad Max or Dying light is unplayeable. So for me partially because indie games are okay with worse computer, and partially because I really love them. Why?
I born in 1990, and grown up playing civ 1, loved doom, the incredible machine, jazz jackrabbit 2, Captain Claw, revolt - in that times platformers and skill based games dominated the market, they were well-made and popular. It's a little retro feeling. I love a well-made pixelart (like Enter the Gungeon) or a nicely ~painted game (Dust: The Elysian Tail) compared to realistic graphics. AAA games went so much for action, big world, and lot of action that they often forget story, mood and variety. A lot of indie games try to fill up these holes in demand, and make similar, "outtimed" games - platformers, strategies, roguelikes, as these are not in the AAA market. I think quite a lot of users are at least at the same age as me - they've seen the older graphics and used to it so it's not a problem for a lot of them. A good game with old graphics is still a good game :)
Also I always loved to read - I have a proper fantasy to imagine and live through stories I read, maybe this is also a reason why I don't need good graphics. I always prefer a good book (with no graphics :) ) to a movie filled with explosions and action if the story is stupid.
So yes, partially childhood memory, but don't forget that most of us is an adult, we know if a game is shit or good. So while we like retro-things, we want to see quality retro stuff (A lot of indie games are just bad, all the unity horrors from GL, or the hundreds of retro-pixel platformers with bad controls and no idea behind it)
Also... there are ads for AAA games. People know those, while indies are kind of hidden, unless you know people playing them. Before coming to steam and later steamgifts, I was pirating games because I had no money. And I didn't even know about indies, all I went for Fallout 3, Oblivion, Jedi Knight and other more-known games. And now I just smile at myself, because I thought I'll always playing the newest, the BEST games - and now I'm a diehard fan of minimalist games with good story, pixel art, or just generally great gameplay. I love some AAA games, but platformers, RPGs and adventure games (both point and click and exploration-like ones) are the ones I enjoy the most, while still giving a try for as many interesting games as I can.
And no, I won't blacklist you at all, curiosity is a great thing! Never be afraid to ask people about stuff you're interested in or don't understand ^^