Ireally don't need much. need shelter, a battery (for when I'm not hooked up to elec), possibly a genny (thiswould be a plus but by no means a req), a range or two, a minifridge would be a plus but not required.
I live very simply for the most part. anything I eat can be made in a range but I can adapt, I can always get a cheap gas grill (like the 30 dollar one I just bought here in canada) to make food as well if I'm making any sort of grilled meats. (outside obviously)
My main concern really is security. I imagine regardless of c or b, it'll be easy to break into, so I try to not have too much stuff. right now I live on the road with a 90L duffle and a backpack for my computer. I don't own much and I like to keep it that way. So a B wouldn't be a breaker, but if I can get a C for the same price? Count me in! Especially since I don't plan to move around too too often.