As a hobby, for the fruit. Perhaps someday I'll sell, I'd love make a living selling fruit and plants.
I also grow: 7 blueberries (highbush and dwarf), several raspberry patches (red, gold, dwarf, and black), 4 blackberries, 1 peach tree, 1 apple tree, 3 pears, 2 shipovas, 1 plum, 3 pawpaws, 4 new inground figs (BT, HC, an UNK, and Bronx White), and handful of things that are edible but not really worth going after. And vegetables, because I don't have enough to keep track of.
Most of the trees haven't cropped yet, all have been planted in the last 2 years. I have another fig (Lattarula), pear, and 2 plums to plant this year if I can find room. Next year I want to add a persimmon and maybe a jujube.