I like the Trilliums a bit better that the Boler/clones, for a number of reasons, but on the other hand all of the Boler 13's I've seen (including the one I own) do
have a molded fiberglass floor. That's not to say they all have one, but many certainly do.
That said, both the Boler and
the Trillium (and the Burro
and the U-haul
, etc.) "fiberglass" floor are going to have wooden cores, for strength. If water ever gets to those cores, you have a problem. I did see photos of a Trillium (that someone on the forum was considering buying) that had had part of a floor replaced due to a water problem.
I do believe that the Scamp
does not have a molded fiberglass floor though - I think it's wood with resin (maybe with glass strands?) applied as a sealer.
Things I like about the Trillium are the many jalousie windows
, the extra storage room and easier fitting of shelves and such due to the more square shape, the smooth molded bottom that makes it easy to see what's going on under there, and the fact that the "furniture" is bonded in with glass (as I understand it; never taken one apart).
Things I like about the Boler are it's slippery towing shape and lower profile (due to dropped floor), the "cuteness" of the outside (especially the taillights), the slightly magical feeling of being inside a rounded shape, the fun colors some were molded in in the mid-70s, and the belly band construction (or rather, I don't like the mild steel plates used in the belly-band construction of the Trill), and the molded floor on the inside of the compartments (the Trill puts the molded floor on the outside, so the inside of the compartments is the "backside" and vice versa on the Boler).
All things being equal, I would probably take a Trillium. But they are both neat trailers and both have their good points and their flaws. I would only trade if I liked the "new" trailer better (regardless of perceived value or etc.)