Fuel economy is a factor. It's not the most important factor, but it's not unimportant either.
Just by way of reference, I put about 13,000 miles on the truck last year. For a little over half of those miles there was a trailer behind it.
I'd be driving those miles whether I have a new truck or an old beater, so yes, MPG and fuel costs are a consideration.
And you might be tempted to say "just keep what you've got and save the money for gas" - I've said that myself.
Right up to the point where I was stranded by the side of the road, 300 miles from home with a blown transmission.
Contrary to the message on my shirt. I was certainly NOT a "happy camper" at this point.![]()