I also wanted to add that our neighbor has a Fuzion that's similar to our Impact. It's a nice trailer, and some differences I've noticed are things like, their steps are better (we're actually going to replace ours eventually with ones like they have), all their cabinets and hardware feel like better quality, all their light fixtures are nicer, it's overall fancier in terms of how it's put together (more wood, etc), nicer appliances, and they have fancy electronic touchpads for their systems and can control everything with their phone. But a lot of the "guts" are exactly the same. Auto-leveling is the same system, doors are the same, bathroom is almost exactly the same fixtures, garage features are the same, etc.
So anyway, just something to keep in mind when comparing a used "fancy" one to a brand new middle range one.