There are SOOO many used RVs that have gotten little use, that are really not worth “much” more than ones that were used regularly and used a lot, that it doesn’t compute with me to get one that’s been lived in for effectively “x” number of years vs one the same age stored under a carport and used a few weeks a year.
Since you don’t plan on towing it around it may seem convenient to buy the one that only need moved 200 yds to its new home. But can predict that it will likely have more wear n tear from use. Big ones being exterior/roof assuming it’s been left outdoors uncovered and the appliances. Don’t know for sure but 14 years on a fridge, AC, water pump, etc that are all used alot seems like the life cycle has been largely used up. Whereas the lightly used and covered RV will have more lifecycle left in these and other components.
Especially now with the COVID buyers being a couple years into dumping their overpriced seemed good at the time decisions.