Not true at all. All the good titles are eventually ported for Mac. But if you can't wait, you can set up a windows partition.
I will say this. If you want to really scream, go Hackintosh. It is truly the best of both worlds.
I’ve looked at building a Hackintosh for a couple of years now. Can’t seem to find the right hardware combination that will work 100% of the time without fiddling and tweaking with this and that. Not gonna spend the $$$ on the hardware unless I know to a certainty it’s all going to work out of the box.
Got my wife away from windows a couple of years ago with a refurb MacBookPro and although she infrequently complains, it is less each month. My "OS repair time has gone down significantly. The hardware is excellent, OS X 10.6 is a good BSD Unix. My main support is to run software update as necessary and run TimeMachine every couple of weeks.
(Disclaimer: I last used windows early in 2004 and have been a unix and linux since the '70s). I now have 2 Hackintoshes (family license) to go with my aging SuSE9.2 machine.
Mel