1. Have you ever purchased a car "out of state". It is pretty much the same deal as far as service, and don't forget you will have to pay home state sales taxes, though many (or most) states have agreements so that you only pay the higher state sales tax of the two states.
Warranty issues - most RV dealers do not do a good job of working on warranty repairs for a model they sell purchased elsewhere. In general, a lot of people are unhappy with warranty repair. The dealer I purchased my TT from has seven outlets in Texas and the time's I've gone in, they have been very quick to work on mine.
Also remember a TT is not like an automobile. The basic frame and fittings are warrantied by the TT manufacturer. The slide mechanism is warrantied by the company which built the mechanism (often Lippert), the axles are warrantied by the axle mfr, the fridge, stove, furnace, water pump, water heater, microwave, television - are all warrantied by the different companies which manufactured them.
I once was in Florida in late Feb and the water pump was acting up. The company which built the pump would only authorize a diagnostic visit to one RV dealer in Fort Lauderdale. That dealer had a 2 to 3 month waiting list before I could pull the trailer on their lot. Then it would be at the end of the line of at least 100 other rigs before they could look at the trailer/ water pump. That would be another 2-4 months. If they found there was an issue, they would contact the MFR and see if they would authorize a repair - at least another month. For a less than 1 hour repair. 5 to 9 months wait time.
I paid a mobile RV service technician $200 to buy a new water pump and install it.
For things like hinges coming loose, screws coming out of fittings - buy a couple square head screwdrivers and take care of them yourself.
2. Maybe. Basically older campgrounds like many national parks and US Forest Service parks have not updated the roads and camping spots, so they do have length limits. Many newer or rehabbed parks can hold any size rig. Often it is not the length of the site, but the length of the rig that needs to be turned around trees, rocks and other obstacles. I have a 36' TT and a 22' long pickup to tow it. Seldom in the 46 states we have visited in that rig have I had to choose an alternate campground. But I now have a lot of experience towing and parking the rig, so I can get into places now that I could not have gotten into with my first trailer which was 10' shorter than this one.
Experience towing and parking the trailer is important.
Full-Time 2014 - ????
โNot all who wander are lost.โ
"You were supposed to turn back at the last street."
2012 Ram 2500 Mega Cab
2014 Flagstaff 832IKBS TT