The Orange Box is happiest on the PC, and with it being built on Source, it's relatively easy on computing requirements. I don't believe the various TF2 updates ever hit the PS3 version, and above and beyond that, the games are shooters, which are generally easier to run with a mouse.
That said, I'm sure there are a few good PS3 titles available for less than $60 now, mostly older titles. Resistance and it's follow up were awfully popular, as was Bioshock and Killzone 2. Uncharted was a decent third-person shooter. Non-shooters also abound.
Mind you, I long ago gave up buying games in brick and morter and buy most of my stuff on eBay now, which averages far cheaper than store bought.
- J