I know, all that crappy software like Office, the Adobe and Macromedia suites, and excellent products such as Xcode (development), Xgrid (cluster computing), Xsan (file storage) and Final Cut Pro HD (video editing) -- all not available for the PC. And don't forget all the high-end scientific UNIX apps available for OS X, and not Windows.
We're talking about broadly used desktop apps, not that load of specialized crap.
Exactly. To a retail chain in a consumer PC world, Mac software, and even Mac versions of PC software, is not "broadly used," just like Maya and SPSS. Therefore, they're not carried.