My D/S seat in the Alabaster had the same "hump" in the leather on the seat cushion, I always thought it was because I was a hardass

Jokes aside, this is a very clean car and the biggest selling point would be the mileage.

The airbag is an EASY swap. And of course, there's always the option of a light coat of charcoal-colored Plasti-Dip to make the color uniform again. The tear-seam in the airbag cover is underneath, and the light hit with Plasti-Dip wouldn't impede airbag deployment.

A $5 fix, if you didn't want to shell out for a new one.