I do grow my own - up to a point. We even grow figs and loquats here. Yeah, you 'heard' it right - figs & loquats, in cold, damp, overcast UK. Put that in your Havanas & smoke it pal.
But I'm not the MS sufferer here - thank God, and contrary to 461's unshakeable belief. My good friends are, and one is incapable of gardening (at least for now), the other doesn't have the necessary facilities (rented accommodation), and I'm not sure of the precise circumstances of the last. She might be able to grow her own, but most likely doesn't have the time, know-how, or land. Most of us only have small gardens here in the UK.