Mike
The vast majority of top quality agents dont work in the flat fee environment and are not able to accept one. How much they would accept is irrelavent because they arent able to accept flat fees.
The house esmith is in escrow on is a good example. The listing agent was lousy (maybe one of the worst I have encountered) and prevented the sale from being completed much sooner at a higher price. Ultimately that worked to esmith’s advantage not the bank that will bear the brunt of his incompetence in this case.
The additional effort it takes to sell a 1.5M house is greatly due to the sellers ego who add marketing costs because they want to see their home advertised in the UT, Dream Homes and other useless publications.