Well its both sides I would say, if the seller gets a good price than he will like it, but a buyer could decide one day that things are too expensive so won't return.
A lot of times the most famous auction site is far to expensive and people sometimes pay even more than in a shop. I hardly buy on there now, because of that and will never understand why people spend that sort of money. I love boot sales, but unfortunately never found any beekeeping stuff there.
My own site is more like a little playgound to practise and maybe one day, the site would be discovered. I did not create my site soley for beekeeping (worked years on it before I even started beekeeping), but just thought that since people kept asking what happened to the other site, that site could be used in the meantime if needed. That was of course before I knew about the forum site !