Probably because visuals are coming down in price. I have seen visuals for $3500 and I am sure if I was an "insider" I could get them even cheaper than that. If the hets were much more than they are now most people would probably end up just buying a visual. I also think it is A LOT harder for a smaller breeder to sell his hets than it is to sell his visuals so he has to offer a lower price to move them which ends up bringing the market as a whole down.