Here's what people are taking issue with, generally speaking.
You: Commercial Theatre and Broadway (which is, shockingly, theatre... whether you admit it or not) are bad. Shows that are rehearsed (which is funny because even the tiniest of storefront indie theatres usually rehearse their shows with the goal of having some semblance of similarity throughout the run, whether you like it or not) are inferior to in the moment pieces, or however you'd like to call them (improv, whatever).
The reality is, there's room for both. You praised SLEEP NO MORE shortly after deriding commercial theatre. You are aware, aren't you, that SNM is very, very, very much a COMMERCIAL production?
If you want to only see, or do indie improv theatre. That's great. More power to you. But to chastise commercial theatre as less-than-worthy is just silly, and immature. It reads as a theatre snob, and elitist, and because of that your comments aren't just inaccessible to most... they're downright offensive.
The same argument happens all the time in Chicago and to a growing extent that I've seen (sadly), Toronto. People complain that commercial companies/producers/presenters do have a broader reach and higher marketing capabilities than indie houses (because they've got a bigger budget obviously, complaining about this is like a little clothing boutique in an area like Toronto's Annex complaining because GAP ads are everywhere. It's silly.). What's lost is that people who may see PHANTOM OF THE OPERA, or WICKED, etc may decide that they love theatre... and then decide to explore deeper. I've produced commercially and indie in a rather divided market (Chicago) and when polling new audience members actually found that this WAS the case. So before you chastise the commercial demons, give that a thought.
And for the record, even a "cookie cutter" PHANTOM began its life from scratch in rehearsal studios with many ARTISTS putting it together. You may not like a show, but any commercial show is still a creation of art. Good? Bad? Art itself is subjective.
And I think the various actors who continue to work and come into some of these long runs, whether on broadway, on tour, or in sit downs who DO put their own spin to the role would have a bone to pick with your statement that it's always the same.