AAA has come into an RV Park for me before. I haven't needed an inner dually replaced, so can't answer to that.
way2roll - I don't see any flaming going on. You stated you just call Coachnet, so the obvious question is what do you do if you don't have service. Your next post answered that - you don't go places without cell service.
What it comes down to are a few particulars:
1. Do you camp in remote areas that do not have cell service?
2. Do you camp in solitary areas (e.g., no neighbors within a few miles)?
3. Are your tires a size rarely in stock at tire shops?
4. Are you on a limited time frame (e.g., have to return to work at a certain date)?
If yes to the majority of those questions, then carrying a spare makes sense. Even if you can call for service, you may not be able to wait an extra day or two for a tire to arrive.
If no to these questions, then you will likely be fine depending on roadside assistance.
