We have had a teardrop for years. It's a different type of camping to a tent or a caravan.
Smaller to store because most of the time it's actually in storage, less to get damp, go wrong, become a chore to look after.
We think of it as a trailer for camping - it's easy to tow, easy to push around by hand, reverse, etc.
Ours is big enough to sleep two adults plus the dog, along with a cooker connected to the onboard gas cylinder along with all the crockery, etc. You can be lazy packing, between our smallish car and the teardrop there's enough room for gazebo, additional kid tents, coolboxes, chairs, tables, wet suits, etc.
And then we store a lot of our stuff inside the teardrop when not camping.
We used to have a campervan but when we weren't going away as much it was awful as a normal drive and then wouldn't start, it got damp etc. And we went for the teardrop because we couldn't justify dropping thousands on a caravan thinking about cost per night and after backpacking a lot, wanted more comfort than ultralight but hated the multiple top box, mammoth Tetris packing challenge that four person family camping ends up as.
It worked for us, but we are always amazed at how much vans, caravans and teardrops have started to cost. Ours was deliberately designed as an affordable answer for holidays and weekends away.