I dunno i know how u feel but i don't think its that bad. The games do come and some of them are awsome. What really gripes me is the shit code that portiing houses have do deal with, and becasue of the lack of funds they don't have enough to do decent enough Ports... QIII was developed for windows, Mac OS, and linux... and it ran on mac's beautifully.
However most games are just ported to the mac now and house's have to deal with shitty networking code and the crap that people call DirectX and its API's... horrible. If only porting house's had the time and ability to port these games to run on mac's as they should then things would be a lot more healthy - people would think more about Mac's as gaming machines and u might see some more healthy pings..
I heard rumours a while back about a software company which was in the process of developing an amazing app that could amazingly Port DirectX code increadably efficently and quickly.. dunno what happend to it though