There are some cards that I think are just fundamentally worth having for the long term. I don't see them worth enough yet to justify selling right now and taking the tax hit when I think they will be worth good money when I retire and start selling to supplement my income. Some cards are from my childhood collection. I have no interest in selling those ever; pry them from my cold, dead fingers or just toss them in the casket with me. But the rest? I don't see much choice when I can do 500%-1000% in a few years of holding or less. It is a conundrum for a collector. Better than the opposite problem for sure...
