As someone who bought my first house without a realtor involved at all. I don't know what value they could have added. Thanks to Zillow, Redfin and the like it was a piece of cake to locate a house. I found one that was for sale by owner that I liked, we negotiated on a price and came to an agreement. There was a lot of paperwork, but I'm literate and can read. Most of the complex stuff was with the loan and the title company, both of which were more than happy to walk me through the steps of each.

I really have no idea what tens of thousands of dollars extra would have bought me. I don't need someone to hold my hand and look at cars with me either.