D.H.
I love RV'ing, camping etc. I don't see any con's other than where to go!!! But it does depend on what type of RV you get.........a pull one or one that is drivable...... there are pros and cons to both.........I would think you would want a pull one since you have the kids and wouldn't want to drive the big one all over to get groceries and such.
You have RV parks everywhere now, including Disney, so it's like taking your own little home with you and not paying or staying in hotels...........the down side, if it breaks down, you cook most of the time, you clean up too......saves money tho.......
Good Luck on your decision and take care.