what keeps me coming back to this game isn't graphics, its the unique factions, and interesting story.
this is a cool game with decent graphics and sound but the real cool stuff is the sides you can play as. The terran are human (although they look like hicks from farms(haha), but dont get me wrong they are very advanced technology wise. Then there is the extremly advanced protoss who are aliens. Then theres my favorite race the zerg, these are aliens that are less advanced but they make up for it with cheap units that still pack a good punch. They are completly biological, so no machine or metal tanks here but they got a biological tank (its called an ultralisk but it looks like a giant four legged animal with big teeth and sharp blades). The campaign is really interesting, and the skirmish mode keeps you coming back for more.
The only problem i have with this game is it has alot of lag when you play for more than 2 1/2 hours, like the disk overheats or something... my computer is brand new $2000 windows xp machine and it runs more graphically advanced games just fine for as many hours as i want.
if you guys know why it lags up please feel free to send me a message.