Since I'm single, I figured a 'B' would be fine for me. And it was fine size-wise. And it would have been fine if the CG was the destination. But I'm more of a visitor/tourist. If I left the CG to explore, I often came back to find somebody in my spot. I even tried putting an orange highway cone in my place while I was gone and sometimes found it moved out of the way and the spot taken by somebody else.
So I traded my 'B' for a 'C' and added a Jeep Wrangler toad. The 'C' stays in the CG, hooked up, and I do my exploring in the Jeep. Bonus: The 'C' has a full time queen bed unlike the uncomfortable bed/sofa in the 'B'. And the Jeep is just plain fun to drive.