I haven't seen any that size in a store locally, but I paid $20 for a ~4in piece at TPP. Id agree with porky that 50-100 is probably fair for a hobbyist to hobbyist price, probably leaning towards the higher end or a little more depending on coloring and quality of the piece... at east coast I wouldn't expect to pay any less than $1000 to buy or to get more than $50 on the trade.... they should offer financing there...lol...in all fairness they have gotten better, but still too rich for me...