I've never had a new RV of any kind until last year. All the Class B's and the other 3 TT's were used. But I have a relatively shallow budget for such things.
Last year I bought a brand new Jayco Jay Flight 23RB. Dropped back from a fiberglass, aluminum frame little bit too small TT to the aforementioned stick and tin model. But it suits us, has enough space for us, and at 70, I don't see another RV being bought by me.
Folks just need to stay within their own budget. However, the guy who bought the used trailer in the OP's first post, should have done a PDI walk through before getting what he did.