PowerPC Macs still on sale

Another sidenote: apparently Apple will continue selling PowerPC computers until the stocks run out. But they don't seem to be dropping the price. Are consumers going to end up with G5 iMacs when they think they're buying Core Duos? It certainly seems bizarre that you'd sell two machines - one apparently three times faster than the other - for the same price. Knock a few quid off, and you might even have a stampede on your hands...