Which is not necessarily a big deal for someone sufficiently technical, but I know my siblings aren't going to be running a different OS in a VM to play games.

Which is not necessarily a big deal for someone sufficiently technical, but I know my siblings aren't going to be running a different OS in a VM to play games. Out of curiosity, I just checked on my Mac and I see a few 32-bit apps. Steam (surprisingly?) is 32-bit only, as are a couple of games. The games I actually play on my Mac have 64-bit slices.