I run a FSBO website.
www.ByOwnerNation.com. I work with FSBOs and FSBOs only so I think I can be considered reputable when I talk about this subject.
I agree that FSBOs only sell for less, because their homes are worth less in the long run.
The line that many people like to use, that I made a FSBO $3000 more because they used me is just not true. Yes, it may happen sometimes, but then again, sometimes anything can happen. Including you making them less most of the time.
The truth to the matter is that when someone decides to sell by owner, it's because they want to make more money and not pay a commission. That's it. So tell me, why would someone decide to sell their home on their own, just to give somebody they will never talk to again a great deal on their home? It doesn't make scense. If that was the case, everyone would just use a Realtor and pay the commissions and come out with the same money.
The ONLY reason a FSBO would sell for less to a comparable home, is because the FSBO didn't know the market or didn't do their homework. If they thought it was worth more, they would have sold it for more.
Someone selling by owner is ONLY doing it to make more money, no other reason, so buyers thinking they can get a better deal from a FSBO is going to sadly mistaken. At least that's the case 95% of the time.
But hey, SOMETIMES, anything can happen.