They're competing with VCs trying to build developments and companies trying to turn a profit. Gone are the days of the "Fixer Upper" that Tim Taylor would buy, drop a reasonable amount in repairs, preform the repairs themselves, and then turn a modest profit.
Everyone who buys a house today wants the value to go up. Nobody who can afford a house needs one. They are not commodities that you utilize and repair. They are now investments, vehicles to grow your money.
That's great for all the snobbish out of touch retirees. But the middle class needs somewhere to hang their hat so they can rest up and make it to work tomorrow.