I think selectively keep both, assuming space is not an issue. I would rather read a trade edition than an original. I do sort of like quality sets, even if not first editions. I have a few things I think are rare that are not even out. I have inadvertently ended up with not so hard to obtain duplicates, its kind of a pain to try to sell, so they might end up as loaners or given away. Hope it brings much enjoyment.