Yeah and the total lack of hardware support from Apple.
When you think about it, Apple has given the greatest gift to Microsoft by not embracing gaming, because every person that both likes to participate in serious gaming, and also likes to use a Mac for work/productivity, is essentially forced to buy a second Windows machine for gaming ("Thanks Apple," says Microsoft, Intel, and all other PC manufacturers), or else make a compromise one way or the other.
For me, I've chosen to use apple mobile devices (iPhone, iPad), and then otherwise PCs exclusively for both work and play. I can live with the PC for work, because honestly most major productivity and design software is cross platform now anyway (or there are solid alternatives), and it's not worth it to me to switch between two devices all the time when I go back and forth between work and play.
Plus, every new hardware release from Apple on the Desktop/Laptop side is already out of date hardware by the time anyone gets it in-hand anyway.