I definitely see the benefit in offering straight-up, no-nonsense domains for a reasonable price, although I do think there's a chance that the owners will not get as much as they could have if the names were auctioned. Have you thought about a "Buy it now" type feature in addition to an open bidding/auction price? Seems like it would provide a chance for the owners to get more money out of the sale if the demand for a name is particularly high.