I want more room overall.
I do all of my office work inside the truck, absolutely nothing trucking related happens at home unless I am looking for a load, which I usually have set up before I get home.
I cook in the truck to a small extent now, and want to be able to cook a lot more.
I'm sick and tired of cracking my skull on the dome light moving back and forth in the truck.
As it is currently, my top bunk is pulled down to hold things like my printer, cooking stuff, and drinks. With that pulled down in this truck, sitting on the bunk is even impossible.
I run west, a lot. I can run even further west into California with good rates out of my home location with a California compliant truck.
Fuel economy will offset a significant portion of the payment.
This truck is paid for, but it's not free. Trucks at this mileage cost money to keep up.