My understanding of domain flipping was that you bought a low cost name - say under $25 - and you sold it for a quick profit. This means it will probably go for under $250. However most of the sites that purport to be flipping sites seem to go for higher value names. Every now and again a true flip dump site seems to appear, and then fade away. Is there any merit in supporting these sites, at worst, it gives you name a bit of exposure, even if it is a dump and forget operation.