Hmmm...just because something costs more does not mean it is always better.
I also hate long double action first shot trigger pulls and long resets.
9mm ammo is much cheaper, but I sometimes worry about its future availibility if Clinton or Obama gets elected. One of Bill's favorite ideas was to ban or heavily tax the most common types of ammo used in crimes, and, you guessed it, 9mm was always right up there. Instead of switching everything to one caliber, I plan on keeping .40 and 9mm around, kinda like not putting all my eggs in one basket.
The Glock trigger is very similar to an M&P or an XD. When you draw, don't touch the trigger until the gun has cleared the holster and is pointed downrange, and it won't matter what you carry. Trigger safeties and grip safeties don't help a bit if the shooter pulls the trigger before the gun leaves the holster. As for reholstering without snagging your shirt, this is solved by simply looking before reholstering.
my $.02.