Insane? We went from a small 17' hybrid to a 34'TT w/two slides and haven't looked back.
For us, since most of our camping takes place during high temps, the tent end windows of our hybrid usually stayed zipped up the majority of the time anyway...in favor of the A/C. Further, the thin layer of tenting did nothing to drown out all the late-night parties and early-morning diesel engines. The 'flapping' during windy conditions was a nuisance and it was inconvenient to dry out when breaking camp in wet weather. Nope, I don't miss the tent ends.
If you really think you'd prefer a popup or hybrid, rent one first. Schedule a trip when and where you will usually be camping and see how it goes. Then try it in your TT and compare.