I have probably 50 named varieties and a lot of seedlings. I enjoy the anticipation of seeing what a seedling turns out to be. I have a greenhouse and last year I had to make a make-shift greenhouse because I had outgrown my greenhouse. When I put them up for the winter they are stacked. It is sort of like going to the circus and seeing how many clowns can you put in a compact car.
A hundred seedlings do not take up much room the first year, but each succeeding year the room needed grows exponetially. I have an obsession with them that I do not want to get rid of any until I see them bloom. That may be about to change. This year will be a challenge.
I used to bury my plumerias in the ground or bury the pots when I didn't have so many. Now I move them around and have my plumeria section of my yard divided. I keep the ones in bloom where they are more noticeable and the ones that aren't blooming are somewhat hidden.
It sounds like you have a "traffic stopping" yard Grin. Things like Gustav must send you scurrying to protect them all. I am working toward reducing the number of plants in pots in general, so i can have a few more plumerias. My husband has a limit on how many huge plants he is willing to move...and move...and move. Grin