We plan of purchasing a TT, not a fiver for a couple reasons. First, my DW has problems negotiating stairs - she can do it, but it's painful, so eliminating stairs inside our future home is important to us. We will also need the truck bed to carry our little motorbikes. If I build a rather spacious topper we can use it to carry our bike gear, generator and have some additional storage space that we would lose by not choosing a fiver. Also a TT tends to be a couple feet lower than a fiver, allowing us to get in more places with low hanging branches, low bridges, etc.
There are few high quality (read heavy) FT TTs available. Besides, we plan on being snowbirds - moving where the weather fits our clothes, so we're not looking for a 4 season model, trying to avoid freezing weather at all costs. Here's an example of some of the units we are considering: a Skyline Layton 314s, an Open Range Journeyer JT337RLS, a Salem 29FKBS, a Sprinter 300KBS, a Dutchman Denali 287RE, a Coachman 305RKDS, a Puma 30RKSS, or a Gulfstream Conquest 295SBW, the last 2 because of their high CCC and low weight). In realize that these low-end units probably won't last my entire expected retirement, but we'll (hopefully) be forced to buy another to replace it before we eventually expire. Our goal is to buy a gently used, late model (a couple weeks/yr, vacation TT) with at least 3,000 lbs CCC in the $10-$15k range. Of course at this price, we could afford to buy a few if needed (over the rest of our lives) vs what what a much heavier (meaning smaller in our case) FT TT is worth - if we could even find one, as FT TTs are pretty rare compared to fivers. Plus a used FT TT in our price range more than likely has been used extensively FT, making finding a lightly used one we can afford even harder.