I like when I go to an RV show and do not see any TT I like better than the TT I have.
Does this mean my RV is perfect? Of course not, there is always some little gizmo or design feature that appeals to you.
But careful analysis of what you like and need goes a long way towards finding the right TT. It is not a race to the finish line so to speak.
In our case we rented a similar sized model, to see what pulling one of these barns down the road was like; before we spent our hard earned money.