Unfortunately, as with most collectors art, you can count cinemas displaying those on proverbial lumberjack's hand. And it's a damned shame, too.
As of sophistication... eh. It's easy to generalise based on data gathered through a favourable peephole. Can't tell you any averages beyond anecdata, but I roll with a span of people from ones who wouldn't miss a concert at the philharmonic to total blockheads who'd probably think Vivaldi rips off movie soundtracks.