I buy all the time,wether the price is higher or lower.I see guys that come out of the woodworks ,looking to buy the same stuff I am,but when the price drops, they vanish.
While it is nice to show everybody your buy, I would be VERY careful. There are a LOT of lurkers on this and every other Treasure Hunting/Metal Detecting site that aren't nice people.
I personally know several people that have been robbed because of posting their finds. Just be careful!