We seem to be dancing around the 800 pound gorilla in the room.
What do you want to tow and by extension, what do you want to drive.
Towing a smaller
fiberglass trailer is a totally different travel experience than towing a larger trailer.
There is a sacrifice to be made as you increase the size of your trailer,
but if you want larger amenities you must make the sacrifices to have a larger trailer.
Stuff like parking on side trips , or going through drive-ups, sometimes even availing yourself of smaller campsites can be a distinct advantage of the smaller trailers.
If you actually need something larger than a full sized bed or must have a dry bath, or have special needs, then you must have a larger trailer and usually a larger tow vehicle.
We have had a Scamp13D for 15years and have no plans to trade into anything larger any time soon. It has a fullsized bed, a full wetbath and all the amenities afforded in a nice motel.
I see many people buy small and then contract twofootitis .
This can be costly if buying new, but if you are not sure what you really want then buy used for the first couple of
fiberglass trailers .
Buy new once you decide what is the right size.
While it seems most folks tend to upsize when starting small, I actually found that a 13 was a much better fit for us, and after towing larger trailers found the Scamp13 to fit well enough to buy new and to keep long term...
Much larger feels like clown shoes.
Trailer storage, especially indoors, is another consideration which gives the advantage to smaller trailers.
My sympathies to those who can not fit comfortably into a smaller space,they simply don't have the choices which others enjoy, but at least that solves the shopping problem....buy larger.
Know your needs and get something which you can enjoy the advantages and tolerate the liabilities. Do this and you too can buy a trailer which you can keep for decades.