As I have mentioned many times, I much prefer stopping at rest stops, city parks, almost any place other than a noisy, crowded, truck stop. If you prefer truck stops to city parks, or rest stops, then by all means do your own thing. I prefer not to spend my stops taking a break at a truck stop.
Yes, you have to stop before the tank, 70 gallons, is anywhere near empty. But, to me, it's just more pleasant to stop at almost any place other than a truck stop. Regardless of how wonderful I've been told the new truck stops are. :) Wink wink, nudge nudge.
On Edit, it occurs to me that the great thing about it is that no one is forced to add an auxiliary tank, so they really have no need to defend their decision not to add one. It's a free country: dif'rent strokes for dif'rent folks.