What to do with steam keys for crappy games?

At the moment I'm going through all my bundle purchases to finally add the games to steam (hadn't the time until now).
And I just noticed that there are a lot of crap games in these bundles (especially from Indie Gala), for example:

Air Forte
Alien Shooter
Alien Shooter 2
Aura: Fate of the Ages
Death Track: Resurrection
Death to Spies - Gold Edition
Dream Pinnball 3D
Fireburst
Garshasp: The Monster Slayer
Gettysburg: Armored Warfare
Iron Grip: Warlord
Ironclads Collection
Memento Mori
Naval War: Arctic Circle
Naval Warfare
Pacific Storm Allies
Razor 2: Hidden Skies
RIP - Trilogy
Reign: Conflict of Nations
Sacraboar
Trapped Dead
Vegas Make It Big
Yumsters 2: Around the World
Zombie Bowl-O-Rama
Zombie Pirates

How do you handle that? Do you just activate every steam key you get in your hands or do you try to keep your library "clean"?
I mean I have paid for these game after all (not much, but I paid something). And adding these games to the library does not force me to actually play them and it increases my game count (to brag about it *yeah*...).
But I will definitly never ever play these games (I won't even have enough time for the good games) and it just clutters the whole games list.

What are your opinions on that topic?

And before I forget: Take that, for your efforts.'

EDIT:
The giveaway is over now. Thanks to all of you for your input :) !
I was very surprised that you guys find a lot of my "crappy" games quite good as it seems. I think I will go through the list again and activate some of them (Death to Spies for example was mentioned twice and seems to be not that bad actually). There will be always games that turn out to be bad after activation (even if they look good at a first glance), so it is impossible to keep a "clean" library anyway. And as some of you suggested I can just make a "junk" category to filter them out. However, for some of the games I'm pretty sure I will never play them, so there might be a giveaway or two here later ;) But this won't happen before I have finished looking through my bundles and finally activated the games I want (just for my own record: 125 steam games before).