Mark of the Ninja...

No.

No.

yes

Seen in a review.
Not bad, but maybe 5$ would be better.

No, maybe (and as happened with Shank), appears in a next HIB

Yes, excellent game

Looks cool, but not paying that much for it

Great thanks! Convinced me to wait until later to get it for a giveaway... :P

yes its great, i bought it for full price

Definitely. I bought it for 50% off, but I would say it's worth full price.
It has the flowing animation and art style of shank (both are made by klei) and the best stealth mechanics of any game in years.
I pretty much agree with this review: http://kotaku.com/5941288/mark-of-the-ninja-the-kotaku-review (although I enjoyed the lasers)

I'm on the fence about this one as well but I think I'll hold off, at least until the next time it's on sale, Steam Holiday Sale is like crack and I'm running low on drug money

Definitely yes, people shouldn't judge it on the developers and actually play it before saying it's worth less than 7$.

Just buy it now!

Yes. I bought it for full price and I don't regret it. Really good stealth / platformer.

adding another big YES

Bought it on XBLA and it's the best stealth game this year for me. So if you like true stealth games, then yes.
(otherwise.. yes). Getting it on Steam as well at one point

Yes.

Yes

This is for many many people the best indie game this year, so yes it deserve a buy for just 7.5

i bought it for 7.50 a couple of weeks ago. i really liked it. i will be doing a newgame+ on it soon.

Don't be mislead, it's nothing like Shank. It's a very clever, intense and well thought-out game which stays that way till the very end. to answer your question, it's up to you what it worth to you.

Get it. I played the first mission and it's awesome so far.

Thanks for all the feedback btw...

Yes, it's a great game.
It also has a pretty high Meta-score on Steam.

"Upon its release Mark of the Ninja received critical acclaim from both mainstream and video game journalists."