Yeah, I've never been into it either and I've been around long enough to be there for the start of Spelljammer. I just prefer my mindflayers as weird dungeon basement monsters and never really cared much or gave much though to Gith* at all aside from "Thing on the cover of my 1e Fiend Folio". I just never found anything about the setting to be compelling and was turned off by the "lol random" elements.
It says something that I did think the opening cinematic were nifty, but then the ships just teleported about rather than sailing the High Astral Seas of Outer Space.