deus ex is totally worth it. for its frustrations, it does some things really really well.
same for catherine. great game (if you know what you're getting into)
la noire is what it is. as an experience, it really shouldnt be missed. but it's not RDR-LA. more of a cinematic experience than open sandbox games, but an interesting and well done story, has lots of fun moments, etc. (the interrogations are a little frustrating for a variety of reasons, but are unique and a good first stab at a cool idea)
considering you can get all 3 of those for $36 (closer to 32 if you're a year+ gamefly member), hard to argue. GO!