Greetings to all, this is my first post at this forum. I really have enjoyed the reading and information on all the boards. I am considering purchasing a Class B van(probably a Sprinter). My main concern is which size: the 18.5ft or the 21.5ft. I guess the main issue is parking the 21.5 footer in a busy parking lot(restaurants, stores, etc.). I know the 18.5ft isn't as much of an issue because there are a few other vehicles: pick-up trucks, vans, and suv's that size that I see often in busy parking lots. Thanks for your input, David L.