completely overpriced?

Today I went to an auction for a 1964 Globetrotter. It was completely renovated but did have a bit of water staining and some peeling interior paint. It WAS not restored with original appliances. Based on the price and condition guide, I thought it would go for around $7k.



Vehicle Auction - Alderfer Auction



It ended at $17k.



I am trying to figure out how my calculations were so off.



Input?



Thanks,



Lisa