I can understand how what you're saying re: repetition in general might make sense from a logical perspective. But there's a uniquely meditative quality created by extended repetition (and no, you don't need to be stoned in order to achieve that, though it definitely helps brrrrrrrrrrrahski) and I just think it's a shame that you seem so resistant to that concept. But hey, you're still gradually digging a bunch of soul that you used to dismiss so maybe you'll come around to repetition eventually as well.
Re: The Beatles, "She's So Heavy" is both longer and more repetitive than "Hey Jude". So ####ing what? Both songs rule. Well okay, "Jude" is a bit cheesy but it's generally still pretty impressive compositionally (great chord progression and vocal melody). And "She's So Heavy" is indeed pretty heavy for the group and makes me wish they did shit like that more often ("Helter Skelter" also has this effect).
And actually, now that I think about it, "She's So Heavy" has the potential to be a gateway drug of sorts re: you getting into repetition. The next time you listen to that song, focus the sonic textures created by those riffs, especially the 2nd one (the "she's so.....HEEEEAAVAAAAAY" one") and especially towards the end where it distorts before vanishing abruptly. That hypnosis-inducing effect is what extended groove-based music produces, only on a larger scale.
This has been "How To Listen To Your Favorite Band" with Pugeye- thanks for tuning in