No but there are decent $150 boards that support Crossfire already
True but we don't know if there is a variation in the quality of the CF or SLI experience based on the chipset being used. So, again, saying it's "possible" doesn't necessarily mean it's the same. You might be right, don't take that totally the wrong way. But someone might as well say you could build a Mercedes for $10k just because a car can be built for 10k