I agree. I first heard it on a bootleg in the '80s and wondered why they didn't just use that one instead of remaking it to get the version they released.
At the same time, I wondered why they didn't put "Leave My Kitten Alone" on Beatles For Sale rather than "Mr Moonlight".
Friend: My favorite Beatles song is Band On The Run.
Me: It's not a Beatles song.
Friend: Wot! That guy, that guy, Paul McCartney sings it right?
Friend: Alright! That one is my favorite Beatle song.
I think George's sitar sounds very amateuristic to me on this recording. Plus I never liked the sound of it anyway. lol. So I prefer the version released on Rubber Soul. Nevertheless an interesting take.