Spelljammer - Check Out These Spelljammer Ships!

I've always been very puzzled by Spelljammer. I remember when it came out the first time. I had nothing against it but decided it wasn't for me. I tend to prefer a more "traditional fantasy" setting for D&D. If I wanted to play in space with space ships, I'd play Star Wars or Star Trek or something along those lines. I'm curious if there is indeed a HUGE following for Spelljammer and if so, what do they like about it?

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