I used to be able to drive 400 miles without a break , but those days are over. I love having my bathroom where ever I'm traveling. As I read previous comments, I too am a large person and I manage just fine in my compact wet bath. I'll pee just about anywhere, but I don't like to sit down in public restrooms unless I have to.
My wife and I are also shower before bed type people. Hard for me to go to sleep feeling sticky, love to hit the sheets feeling fresh.
And I chauffeur my mom (semi in-con-tenant) and other senior relatives frequently and they too love having a bathroom when we travel back and forth across the state to visit relatives.
Go with a bathroom. If you don't use it it will always make a nice storage closet. Hans