I re-read the original post and caught the OP’s inclination toward “luxury RV resorts.”
Many have age restrictions on the RV, some as low as 10 years. That would be a reason to buy new or near-new. The latter would still be my preference if the savings reflected the lack of warranty. Like Rocinante, I'd rather pocket the savings and use it for repairs by a trusted local RV shop.
The tri-star logo and Airstream name might be assets in an RV resort, though I personally find better value in Pleasure-Way products. They offer similar layouts on the Transit Ecoboost platform in addition to the Sprinter diesel. Do your homework on the pros and cons of each.
Maybe include both on your short list?