Should I buy?

OTOH all these trailers use more or less the same appliances and systems as everyone else does, so things will inevitably break and they will take work to maintain. An RV is really a tiny house that gets shaken and bounced around all the time. They are all going to have maintenance and repairs to do, just the nature of the beast. 

That said.. ANY camper, pool, boat, plane, etc, isn't an "investment" monetarily. They are a money pit. All of them. Doesn't matter if you like them or not. They all devour expendable cash, sometimes at an alarming rate.

If you don't already enjoy, or want the "lifestyle" and traveling freedom of "camping", then honestly, it isn't for you if money matters.

A new, small TT is going to cost, ready to camp, between $20K and $70K.. You can stay in a lot of Holiday Inns for that..

But.. if sleeping in your own bed, fixing your own meals, being off the beaten path, hiking, watching sunrises and sunsets, communing with nature, etc etc are what you want to do with your time and energy.. then it's a nobrainer, and only money.

I would probably say that over half of our time in our RP179 has been at places without hookups. These involve truck stops, Walmarts, and a Vermont State Park. We don't turn down connections if they are available. We travel with our R-Pod and in the time we have owned it (since December, 2015) we have probably put over 30,000 miles on it.

The best thing is sleeping in our own bed. We don't cook as much as I thought we would when we are on the road, but when we are stopped for any length of time, we do more cooking. Much of that is outdoors on a Coleman Grill-Stove which keep the cooking fumes outside. We also carry an induction cooktop which comes in very handy when we do have shore power available or when I take the time to fire up the generator if we don't. We also have seen much of this country at ground level. That is something that is priceless.

We are both in our 60s. My thought is that it was worth doing rather than looking back and wishing we had done this. Camping was part my childhood (and also my wife's). We have camped in tents when we were younger. It got too difficult as the aches and pains of arthritis and consequences of injuries sustained while we were young have caught up with us. The R-Pod is comfortable and roomy. I wanted a Casita, but got scammed from a Craigslist post. While I still don't like that we sustained a loss there, I am happy we got our RP179. It has been a good fit for the two of us. We may get tempted by the new models (such as the 195) coming out, but I have done a lot of customizing to our 179 (see link in signature) and have some more modifications that will probably be done this winter after we get it back from the dealer where it is getting some service done. It would be hard giving those up. We are fortunate enough to be able to park our R-Pod in our driveway. It is very handy to have it there when I want to do some modifications.

Only you can decide what is right for you. You may not save much by having a small trailer such as an R-Pod, but the journey is part of the adventure. Flying and staying in motels might be cheaper, but then we would have missed out on many of the memories we have made.

I owned a Casita and they are quality rigs. If you search carefully and dont mind driving to pick one up (we traveled two days to get ours) you can find a nice used rig. We got one for $14.5K, sold it for the same amount a year later (I am 6'1" lol). Now happily towing an Rpod. One advantage you have is already owing a towing vehicle.