We went from a 35' 5er to a 34'TT (both with rear bunks) and now we have a 30' toy hauler TT without bunks. The 35' 5er was awesome while the boys were little and we didn't have kayaks and only 2 really small bikes and sandbox toys. But now that our boys are 11 & 13 the need for bunks is less than it used to be and the need to haul around 4 kayaks and 4 bicycles is more needed.
We haven't used the new TH yet (she's still sleeping at the dealer) but we're really looking forward to it! It doesn't have the cramped feeling like our other rigs have (even though they we're MUCH bigger). And, our camping trips we're getting to "complicated" by bringing everything and the kitchen sink so we're tying to simplify our trips.
Time will tell!