Silverleaf, speaking for myself I have a thing about all things miniature, dollshouse, knitting, collecting etc and so they fit right in. In a more practical way I can then grow them under lights through the winter when all my others have gone. I grow all kinds of salad stuff too and microgreens, I just enjoy them.
I also grow the dwarfs from the Dwarf project which is fascinating.
Some of these tinies were bred to be grown in space under lights, those spacemen have gotta get their veggies!!
I won't but bagged salad it scares me but I like the small leaves so growing it in the winter is good. The power bils are less than I would pay for the bagged salad anyway and I can pick it fresh.
The trick with all of them , for my point of view, is to keep sowing and planting. There is not a lot of fruit or leaves at any one time so keeping them going is the answer for me.
Try it, it is fun
XX Jeannine