I hear comments at shows about how EMs are bore-fests, and when asking these folks for reasons they feel that way, they typically point to a game or set of games on the show floor that shouldn't be at any show... game functions that don't work, weak flips, not leveled properly, etc. etc... we need to make sure all EM games on the show floor work all the way and are shopped properly. We need to pass on the wow factor of EM games by respecting them in the way we prepare them for shows.
For me personally I can see how some lines are drawn... for me growing up, I started playing at the end of the 2 inch flipper era... there were a few games around that were still on route (Magic City, Royal Guard, Apollo, Buckaroo), but the crux of games I played were of the 3 inch variety. These games are what I poured my hard earned quarters into, and what I'm generally drawn to today.
That being said I try to play new-to-me-games at every show I attend; you never know what kind of game you'll fall in love with. Bally Spectrum and Nine Ball are two I never played until recently but definitely enjoyed to the max.