Its just like car warranty work - they get paid a lesser rate by the factory than if you were actually paying for work. So yeah suspect they would take paying customers first if they are busy and you wait. Getting them to do other work that you are paying for might speed up repair. We all like to save $ on initial purchase - but need to also consider convience and reputation for service too.
See my post in wolfpack toyhaulers. According to a sales rep from forest river they do not have to do any work on a trailer not purchased at that dealership. If you need further clarification contact Becky the warranty rep at forest river
We had our fridge fixed for the recall and a leak fixed at a dealer we did not buy from. They treated us very well, did not charge anything (shouldn't have anyway) and all is well. We were holding our breath for fear we'd have some trouble. We had none. Good folks. Nice people.