Very good question, we have a 2008 3670, and to be honest I would love to have the new floor and the new roof system. However that's where it ends, we like our floor-plan better in the bedroom, we have more cabinet space and drawers than the newer ones. The washer/dryer space is inside the closet and since we don't use it or intend to it's not a big deal for us. The pocket doors are a pain, I wish it didn't have the one going into the bedroom, I would like the door that goes between the bedroom and hallway, and I realize you can't have both doors swinging(bathroom and bedroom). I would said there will be just as many that will like the new layout better than ours, Heartland I'm sure is responding to customers. I guess it's all in what you want. If the only difference between 09 and 10's is the new floor, I would get the new floor. Long winded for that uh. Good luck in your decision, I'm sure which ever one you chose, you'll be one happy camper.