Counting Crows record prices


I was recently looking around ebay for a copy of the Counting Crows and I was amazed at the asking prices. Why are these records going for so much? They are a good band don't take me wrong but asking in excess of $50 seems ridiculous to me.
audiogabby
Supply and demand.
Because when they came onto the scene CD was the featured medium and very few Records were being pressed.