Well, playing bass and guitar of many scale lengths, I'll say that the whole idea that a short scale is "more comfortable" is misleading at best. My short scale is ANYTHING but comfortable to play. But it sounds killer for very specific things. My 35" basses with full 3/4" spacing at the bridge are far more comfortable to play, and thus a lot more fun. My 41.5" upright is also very comfortable to play - I can and do play it on 3+ hour gigs all the time.
In my opinion as a 25+ year player, who started on a 30.5" short scale, the scale length should be the absolute last consideration for any instrument. It's about as important as the color in the grand scheme of things.