Acrolites are just awesome! They are everything a snare drum should be. They sound great. They sound like a snare drum! Ludwig was just so superior in terms of doing business back then, they flooded the student-drummer market with Acrolites and gave many young players a superior drum for less money than anyone else could do. They are everywhere because they stood the test of time and no one has come up with a better, basic snare drum ever since!
I often laugh (or at least snicker a bit) when people start breaking down the nuances of "their' snare drum sound. Gimme a break! No one could differentiate most snare drums in a blindfold test. Sure, there will be a difference between a shell made from a cast iron pipe and one made from balsa wood, but, those are the extremes. The middle ground snare drum sound is where most people play and, in that area, there isn't enough qualitative information to clearly distinguish one from the other. I'd wager that no one could tell the difference between a $30 Acrolite and a Rogers Dynasonic and a Slingerland whatever and a Gretsch whatever snare drum in a blindfold test. It's a fact that most of the snare drum sounds that we hear on recordings is a Ludwig metal shell drum of some kind (usually a Supra)...and that's even when we know the drummers on those recordings ENDORSE another brand! LOL!