I learned the hard way (wore down the frets my first decent acoustic guitar) how to best prolong your fret's life:
Change your strings often
Wash your hands before you play
Wipe down your frets before and after you play
I gig out regularly (2-3 times per month) and my Taylor is always played through my Vox AC15C1 without issue. I have to turn up the volume a bit, but other than that it sounds great. One less thing to lug around.
FWIW, I do keep a Behringer DI-100 closeby just in case but I am too...
It depends on how YOU feel. If you think you'd get more enjoyment/playing time/moxie out of the Martin, go for it and don't look back.
A few years ago I traded a Fender American Standard Tele straight-up for a Gibson LP Studio with a few upgrades. On paper I got the short end of the stick...