True about the VGA, and DVI for that matter, but ur ok with 1080 on 27"???
What size/rez monitor do you have.
I've got a 27" iMac @ 2560x1440, and I can tell you, the day they release a higher rez version (soon hopefully), I'll buy it.
Having said that, 1080 @ 27" is probably plenty for games.
Ps. The "p" or "i" in 1080p or 1080i are video playback standards (progressive or interlaced), not monitor standards. It's just 1080.