I've just read the other Subaru thread and didn't want to mix my own situation there

I also have a 2015 Subaru Outback. Bought brand new, got pretty good deal below MSRP, total OOP was $30k and some change. I bought it for car camping but unfortunately, work got too busy and I didn't get to do what I would love to do with it.
It is financed at 1.5% (cash is earning higher ROI). Currently owe $17.5k, car value at Edmunds $25k ish for private party sale.
We (me and DH) moved from CA to NV late last year and registration in NV is double what we paid in CA. We paid $450 for this year's registration alone. I'm thinking if it's a good idea to sell the OB and buy a used Prius (2009 or 2012) instead.
Thoughts:
- Registration for the 2012 Prius is $280, 2009 is $140, OB is $450.
- Prius seems to be a reliable and low maintenance car but of course can't know for sure how it has been treated.
- We get ~25mpg with the OB vs 42mpg (I think 2012 gets higher mpg but I'll take the lower amount for calculation to be safe).
- Car camp: both allows us to do so. OB is bigger, but we have only car camp twice in the past 2.5 yrs. I'm starting to question if it's worth keeping it for once in a while usage.
- Short distance drive: we both work from home and during the week, we only drive to get food or to run errands in the neighborhood so mostly short distance driving. Prius will win vs OB.
- Tires: need to replace all 4 with AWD vs individual one with FWD.
We will be driving more often to nearby parks and to car camp (hopefully!). While OB is better with snow, I'm not sure we will be driving in the snow often. As a matter of fact, my OB has never been driven in snow yet (but Zion and Bryce Canyon are nearby now).
With a prius, I will be saving $350-$500 in gas/year + $180-310 in registration. Not sure how much insurance will differ.
It seems if we can sell the car at $25k, I will have $7.5k cash towards the Prius. Does it make sense financially to sell the OB and get a Prius?
Edit to add: we only have 18k miles on it
