Well, most of those are usually nonissues at a decent theater. But the easiest counterpoint is that a 100" screen with a consumer surround sound system is also absolutely nothing like a good movie theater. At all. That's an important part of the comparison. It's not just the environment. It's also 20' of screen size and about 7500 watts of sound system.
7500 watts (I know, made up number, but I get the point) is for large rooms. You need to fill massive air volumes. Plus you need to understand that watts can start becoming somewhat meaningless. I mean, take a receiver with 7 powered channels (plus the sub output of course) at 100 watts each. Some other company may have the same thing at 125 watts per channel, but you would be hard pressed to notice any really volume difference with the extra 175 watts. It just doesn't work the way that people think it does. I can say this that at 700 watts plus subwoofers (nothing too monsterous) and it will be a LOT louder than your local theater, even at well under max power. Pair that power with good circuitry and speakers that can reproduce clean sound at high volumes, and you are almost there.
I have only heard a movie in a theater maybe a handful of times where I didn't think that it would sound as good or better at home. A nice IMAX theater that I've been to, and the El Capitan Theatre in Hollywood (has the brand new, fully calibrated, played at deafening reference level, Dolby Atmos.
I'm not talking HTIB setups with crap speakers (been there myself), but something a little decent with treated wall/floor/ceilings just like the big theaters. A hard surface box with the world's best speakers will still sound muddy and terrible with peaks and valleys all over the frequency range and different depending on where you are in the room.
Maybe you have some top 20 theater in your area and the "best" you've heard is Bose. It is hard for me to know, and theaters are definitely NOT for everyone. However, hit up the AVS forum
http://www.avsforum.com/ and you will find that the hobby of home theater is HUGE and most people rarely ever step into a commercial theater again once they have one in their house.
Again, not for everyone, just like BYOArcades and such. Nothing wrong with going out to movies either, just don't be quite too quick to judge the home theater experience.