We have had our 37ft. 5er for 6 years and we decided we didn't want an outside kitchen. We LOVE our fireplace and the central vacuum. w/d and d/w are not necessary for us.
Since we do some boon docking I want more solar panels and a DARN good Inverter, Larger fresh water tank(40 gals. now). All in one bathroom. Painted exterior. 6 point leveling system. All LED lamps. A GOOD exhaust fan over stove. Dual pane windows and a second A/C unit.
And the biggest MUST HAVE is three back up cameras and really good TPMS. and the money to pay for all of this stuff.