Barb has summed up things very well. Don't worry about wearing out the P3AT since it is not a range gun - just something to have with you when you can't carry a gun. The Hogue handall is a great idea. I didn't know there was such a thing.
There are other choices. The Ruger is nicer in the hand, but the one I had consistently pinched my trigger finger. The Keltec does not do that for me, but the face of its trigger is rough! I will eventually give mine a light buffing with some really fine sandpaper to get the worst of the roughness down to a manageable level.
Taurus has a compact .380. I don't know anyone who owns and uses one, but I have seen it. I did not find it particularly impressive.
I just saw the Kahr 380 this weekend. Nice looking little gun. The trigger is a bit light for my tastes, but it is very smooth - no noticeable stacking. The one I saw may have been unusual. I am not a "chicken" by nature but this is one pistol I would never carry loaded, in a pocket, without a pocket holster. The only real complaint I would mention is the unGodly slide stop/takedown lever (whatever that thing is) on the left side of the pistol that sticks out annoyingly and ruins the otherwise flat-clean appearance. The really big plus, for me, anyway, is the sights. They are not only big enough to actually be seen and used, but they also are replaceable, and drift adjustable at both the front and rear. It looks like a winner. If it comes to pass that it is reliable, it will give the other compact .380s "a good go" in spite of its cost. I am told is is roughly double$$ of the Keltec, but I do not know.