Thanks @creativepart! What you warn about (finance guy aggressively upselling) has already begun. We stopped into the dealer last weekend to do some measurements, etc. on the new trailer, and while I was there he flagged me down to push a $2,000+ exterior clear-coat and interior fabric protection on me (I firmly declined).
As long as I can get my wife to pretend she doesn't speak or understand English while we're there, I think we'll be successful refusing other "must-have items" that we don't need.
As for location: Yes, we are in Santa Fe but the dealer is in Albuquerque, and so is the campground. It's generally at least 5-10 degrees warmer "down there" but will still be in the high 20s tomorrow night.