There's never been a housing crash due to inept valuations and the next one will be no different. My guess is the next one will be just like the last one...the lenders gave close to 100% loans to marginally or unqualified borrowers, prices dropped, and millions of people were instantly underwater. Borrowers walked away leaving taxpayers holding the bag, thanks to F/F. If the deadbeats would honor their obligations and make the mortgage payments, there would never be a housing crash.
I recently sold my late Mom's house in Pt. Charlotte FL. $265K sales price, FHA. The estate paid about $10K in concessions, the buyer got a second lien for about $12K or so for their down payment, this lender charged nearly $5K in fees, etc. Bottom line is the borrower had $280K in loans to buy the $265K house and had a total of $1,500 out of pocket to buy the house. Borrowers were $15K underwater the day they closed. Prices are falling in that area and they are now about $30K under. Classic case of no-skin-in-the-game, too easy to walk away. This kind of silly crap causes housing crashes.
Its called "dynamic pricing", the model used in the hotel and airline industry. Perfect example of supply and demand.
Not long ago, on this forum, some appraisers were bragging about getting $750 - $1,000 for a simple residential report due to the demand for the low interest loans and 'shortage' of appraisers. I'm thinking some of these same people are now the ones crying about the waivers and AVMs. Gouging clients when business is booming is not a good business model for longevity. Clients will and have found alternatives.