As a holder of numerous BTC physicals I think the market for selling is all but dead. The value of BTC is too high to transact via traditional methods and there doesn't seem to be any demand for physicals or cold storage BTC. When I bought, I always intended to hold, and pass them on to my kids to peel. Physicals are a conundrum because they have a higher BTC premium the lower the fiat value, so you'll never recoup your BTC, and most have realized that. I spent 17btc for a Cas 10, and so on, so would have been better off just saving the BTC on paper wallet for my kids, but I"m damn glad to have the Cas 10 and there are no regrets.