2 Things i would like to say:
1) Here's a video review from Adam Sessler for Bioshock: Infinite
Warning, Some spoilers.
2) Though bioshock infinite for steam costs $60USD, which includes a copy of bioshock 1, tf2 vanity items and a copy of xcom, you can actually get it at the same deal plus an additional game for less On
Greenman Gaming.
Greenmangaming.com has the best deal for Bioshock Infinite in my opinion if you are to get it for the PC. You get Bioshock 1, Bioshock Infinite, X-Com, a choice of five other games (Bioshock 2, Civilization V, Spec Ops: The Line, Mafia II, or Darkness II), and to top it all off you get $14 cash back(money returned to the account your payment originated from) OR $15 Greenmangaming.com credit.
Here's an
article.