From a logistical perspective, truck stops are great in terms of being able to move a larger rig around easily, especially right off of an interstate.
The Pilot Flying J RV Plus Card is the ONLY way to really make them worth it from a financial perspective. They start by lowering the price at the pump to the CASH price, then give you a discount off of that based on your membership level ($0.08/gallon for a life member) - plus they start the pump and you don't have to go in.
We have a toy hauler, so it's easy enough to get fuel at any conventional station when we have the trailer detached, then hitch up and go. A Sinclair card gets you $0.10 off per gallon at the pump, and that works in many of the places we roam.
