In all seriousness, if they spent more time getting game devs to make games that could use 4 GPU's to their limit, then they would not have to constantly make everything smaller so they could fit more crap onto a PCB. As it is, GPU die size gets smaller, yet the heatsinks don't. Make games that can use 2-4 GPU's effectively and people may buy your higher end products in two's, instead of being afraid if they buy a second GTX285-295, they will lose out because the game wont draw graphics intense enough to warrant 4xGTX285 GPU's.
/End Rant