It's only worth how much someone is willing to pay for it.
Yep, just because its on sale for 50+ k for the original, doesn't mean whomever is selling it will actually sell it. I can ask for 1 million dollars for my custom made laptop case, but it doesn't mean ill get it.
I once sold a painting I did (my first one) for 20 bucks. Id pay a 500 now to get it back. For some people these things are worth a lot more than to others.