Good price for new mags from Midway, assuming they are new mags.
Definitely look to the 81 BB over the 81, unless you have to have the thinner frame for concealed carry. Much better sights and a more durable slide.
Sigs and some of the CZ pistols also have aluminum/alloy frames. And pretty much all aluminum/alloy frames are stronger/more durable than the polymer frames with steel rails embedded into the mold or removable via pins.
The 32 acp has negligible more recoil and is much more capable than 22lr, as well as generally more reliable.
Further, I purchased with the intent of the 32 being used 1) for a trainer up from 22lr -- blowback .380s have quite a bit more recoil than 22lr -- and then 2) to be used for home defense for older loved ones who lack the hand strength to shoot more powerful handguns.
YMMV, but both make A LOT of sense to me.
But absolutely, I look to .380s for pocket carry and 9mms for all uses these days and consider them both the minimum for self defense and other serious use. But for niche needs, the Beretta 81s do have some utility.