KelTec recommends that +P is not recommended on a 'regular basis' whatever that means. 380's aren't typical plinking guns anyway. Break 'em in 100-300rds, clean/lube 'em, keep them loaded, and test them a couple times a year. Some guns are picky and a fluff&buff&polish helps. But, its best to know that none of the ammo in your defense weapon has a too long or too short round. Learn what your weapon likes, or get a good gunsmith!
And, for .32/.380 ammo, I recommend that you buy a micrometer and measure ALL your ammo's length and sort from short to tall. My Seecamp likes short ammo. The Keltec likes longer ammo. I grab 100 rounds and the shortest 50 go to Seecamp, and the longest 50 go to Keltec. If I swap the ammo, I see good ol' jamming and misloads, stovepiping, and failures to feed.
BuffaloBore, Magtech, Magsafe, Corbon... have hot 380's if you don't like the +P+P+P+ terminology.
If you compare the KelTech, Ruger, and S&W at the shop, which do you think is the best made weapon? I've bought the Ruger and Keltech even though I wanted the S&W.
Quoting SAAMI is like an oil that isn't certified but meets or exceeds the spec.
My favorite 380 is my NAA Guardian. I prefer all metal over plastic(heirloom potential). But, plastic is easier to carry in the pocket and no one will usually notice. This is probably the issue between 32 and 380, or 380 and 9mm.... you have to be able to carry it and shoot it. 500 S&W makes a great argument. But, where do you hide it? and how often do you take steroids at the gym?
Don't wait for future releases, usually plagued by low serial number issues. Don't wait for the biggest caliper smallest gun, or the most expensive one. Get that 380 now, or other quality reputable weapon in your price range, and learn to use it!
Since its for your wife, let her decide. Now that she's carrying, don't aggravate her anymore ;-)