Traveling long distance in a Class A is much nicer than traveling long distance in a TV/TT. Your DW can get up, stretch her legs, go to the restroom, grab a snack/drink...even lay down and catch a few Z's. None of that can be done in a TV while driving down the road. The view from the huge front window while traveling (and when camped) is another major plus. And when you do stop (for the day or even for a short break), the A is already at living temperature inside, whereas the TT won't be.
Someone here claimed that the driving area in a class A isn't "living" space...or that a 30' class A is equivalent to a 25' TT. I would disagree 100%. The front chairs swivel around and become part of the living area in a class A; in fact, that is my favorite seating location when camped. You only lose about 2' due to the dash; certainly less than the tongue of a TT.
