I got 5 years out of a $49.95 battery.
I just replaced it and am using the old one for occasional jump starts or
12 v source for testing various auto electric.
I would think anything more than a good standard battey would be overkill
unless you have a weekender with the portable electric fridge.

I only need to run my engine twice a day for 15 minutes to keep my
battery up wile camping. I run the radio, 12V TV/VCR Combo, Interior
lights, Portable CD player on an adapter.