And those are asking prices, if you check completed listings in eBay you'll see most of the crazy priced stuff remains unsold, I searched all the CAL products to get more results than one model. Although everything that did sell went for somewhere over $100 which is still pretty high for cdp's and dac's of this vintage, and a couple got up around $300. They had a sweet sounds with the tube output, but I imagine you could do much better with a bargain dac and a tube buffer these days, digital has an incredibly short shelf life. So I suppose it's nostalgia and uninformed buyers.