A new pricing model for buy side real estate agents?

[Mark Baird]

Do others think it is time for a new model for buy side real estate agents? On my last deal I saved $18,480 by paying my agent a flat fee and receiving the rest in the form of a rebate. It seems like buy side agents should be compensated on a percentage of saving they generate vs. as a percentage of the purchase price? In turn, the interests of the agent and the buyer are really aligned. Do others agree?