I agree with @crackacoldie re ride and comfort. The other small issue with going to a dual cab is that there is all round less room in the cab. There is very little room to put bags, food, games, pillows etc when touring. Sure you have a massive tray on the back for all your gear, but the family might find the actual cab a little claustrophobic whilst driving. Just food for thought. As you know, we have a dual cab and wouldn't change it, but it is worth mentioning the negatives.