Oil change is one of the most fulfilling diy you can learn. Its frequent and you know its done right. No where can get much cheaper than the dealers. You dont want to go to like a chain like jiffy lube where they will end up breaking your skid plate or worse your car.
The cost of tools you need for one oil change is close to the $70 you would pay at dealer. And it takes under 30 minutes to diy.
I would expect most m/t owners to diy vs a/t owners lol