Our first B, had a "jackknife sofa" on one side and a dinette on the other which when both down made a large bed. After a couple years we replaced with twins which were better. On our B+ we had a power sofa, it was OK, but we used a topper when sle...
So if you travel the lower 48 with a firearm near you why is it hard too understand someone might want to do that while traveling thru Canada and in Alaska as well?
To answer the Second part of the OP's question we went from a B to a small C and now back to a B(as soon as it is finished). We anticipate no regrets going back to the B!
The 2nd generation MB Cruiser(2006 model with red accent strpes)had 30 fresh, 30 Black, 26 grey, 2 propane tanks(1 for gen set & 1 for all other uses).