What is an "incentive interest rate"? I've been in the lending industry for quite a while now, and am not familiar with that.
The thing is, people may have ARM's that can adjust, but fixed rates and ARM's are pretty much the same as they were a year ago, and will probably be around the same now. People that got Option ARM's that always make the neg am payment option will still be ok because to break even LTV wise, you need to be in a market that only appreciates at 2%. If people are buying homes that they want to rent out with the dreams of being real estate moguls, but don't invest their earnings wisely, they are foolish and will not be in the best situation. People that have been buying these homes to flip them have been a big reason for the jump in prices. Now, they're trying to sell them at a huge profit and the market is saturated. It'll slow down for a bit, but the market will recover. This also doesn't mean that you automatically take 10% off the top of every house, it just means that builders in some areas are going to have to start prices a little lower. It's really no big deal.