None of which were released between 1977-1983, which caused a sorta 40 year fanbase/profit machine to be born...
To a very large portion of the fandom today, I'd posit, those are the only versions they've ever seen.
I think some of this is (though I hate the term "fanboy")...more, those who are younger Boomers, older Gen-X, and some Millenials...lets call them "Origicons", and those who only grew up with Special Edition VHS/DVD and the Prequels being their theater experience, lets call them "Premobots".
And, I have a running theory here...which of course is not universal, and there is crossover between both...but...
"Origicons" were already adults, or very near adults, when the prequels came out. They are the ones who led the prequel wrath. I...count myself amongst them. I remember going to see the Special Edition re-releases, and noting each and every little thing (well, not every little thing, but...years of watching the originals on Beta as a kid had burned the scenes into my head).
"Preemobots", for many of them, they either saw the Special Editions or the Prequels as their first experience with Star Wars. And, they didn't have a dozen or so VHS and the rare trip to Blockbuster to pick from, they had dozens upon dozens if not hundreds of VHS/DVDs and later streaming to pick from, lots of stuff out there...not just watching Star Wars every weekend on VHS because...there was that or "Top Gun" or "Godfather" (which Daddy wouldn't let you watch).
Now, there are a few things at play here.
1) The EU. Those of us who were born pre-1980 were coming of age around the time the Zahn novels came out, and the novels, and as we became young adults, the video games. Preemobots, the crossover ones who were coming of age when the SE re-releases were done, had the expanded EU...the Jedi Academy books, etc...etc...etc...etc... They...sortof sit in the middle, as they were early to mid teens when the prequels came out, and the experience between age 9 when you first see it, and age 16...well, can be different. Then there were those born later, which is a HUGE portion of the fan community. Too young for the Zahn trilogy, WAY too young to watch the old VHS tapes (because their parents probably replaced them with SE DVDs), and their first theater experience was the prequels. We are all adults now...but, we all view the series completely different.
2) The late 80s. Yeah, there wasn't much Star Wars. It was a "nerd" thing...like Star Trek. It had its prime, we still played with our toys, there were occasionally new toys, etc...but nothing like what would come later when it was mass commercialized. It basically lived in the realm of books and books on tape...and to a slightly lesser degree the comics and role playing games.
Which brings me to point #3...
2) Cartoon Network / Disney "retcon", but still Canon, shows, like Clone Wars and Rebels, but more Clone Wars, impacted the Premobots. Less so the Origicons. And, in a good way. These older movies, that Origicons griped about and tore apart with documentaries and "nostalgia review videos"...the Premobots learned to reflect upon them in a different way...
So, where am I going with this (before I turn it into a thesis)?
One thing I've noticed watching youtube reviews (because...I watch a lot of youtube in the background as I work...bad habit, but I do...right now, even, I'm listening to Kevin Smith's review)...
The positive reviews come in three flavours:
1) The movie is making a lot of money and you "fanboys" are killjoys for not appreciating it
2) I just went to have a good time, and I had a good time, and yeah, there are problems, but I'm remaining optomistic
3) (and this is the one I note a lot)...How can you not love it because NEW!?!?
And, the latter is the one that I want to sit on, for a minute, because I watched the review by "That Guy with a Camera" (who does Disney Park videos as well, that are pretty amusing), and they were all loving Yoda...why? Because...YODA! It was YODA!
And, it reminds me of what they aimed for the prequels for the "Origicons"...and, we reacted, when we saw Yoda. It was more that...we didn't feel any threat about who Yoda was fighting.
And, therein, I think lay the disconnect.
Those who know the story, because they consume the new lore and anticipate more of it, will love it.
Those who do not...will not. Origicons already read their "novels upon novels"...and have little interest in reading all that or watching 6 seasons of a cartoon series to keep up with all the little references in the movie...
And those who grew up AFTER the insane commercialization of Star Wars post the SE releases...don't have the dwelling over the characters...because, they never had a "dearth" of content.