After looking at pop ups, A-frames, and small travel trailers, we settled on a fiberglass trailer. I researched for a few years before deciding on our Casita 17'. It has a full bathroom, A/C, heat (110v and propane), hot water (110v or propane),, kitchen, bunk beds, and dinette that turns into a bed (we have 2 adults, 2 small kids). They have several layouts depending on your needs. The "best" are Escape out of British Columbia, but there's a 1 year wait for one, then Casita out of Rice, TX, then Scamp out of MI.
What it brings over a pop up: Way less set up, full bath, you can access trailer (use bathroom or stock fridge) without cranking up the roof, no canvas sides (wife was worried about bears or someone stealing the kids at night), less to break. They are way more aerodynamic than a stick built trailer too, and they last forever and hold their value.
The dry weight of ours is listed at 2250. I guess it's about 3000# loaded up for camping. It tows awesome, but I have a lift and aftermarket shocks, so I think that helps eliminate sway.
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