But in the page it says:
"All games are instantly redeemable through Steam Play upon purchase"
are you sure?
I'm 100% sure Black Ops doesn't support Steam play. There are 2 different entries (1 for Windows, 1 for Mac) on the Steam store, and it has no Steam Play icon on the Steam store.
As I said, stupid porter shenanigans.
I despise Aspyr Media, Feral Interactive, and their ilk. I may not like Macs, but it's their fault that AAA games for OS X are so expensive. Everything they port is horribly overpriced and remains that way forever. Oh and forget about getting support after a few years. Aspyr deleted almost all info on their pre-Intel-only games and stopped supporting any relatively modern PPC stuff, period.
Thankfully a bunch of companies are porting the games themselves now instead of sublicensing the games to them.