I smoke too frequently to only smoke my own grown, but I have opened a jar from three years ago and have enjoyed a few bowls out of it. It is all Virginia/Burley ropes. Each year I have increased my crop, so in three years I will definitely have enough to enjoy at least one bowl a day. But, to really be able to smoke all of my own leaf (which I am not so inclined to do as there are many fantastic blends out there) I would need to harvest at least 15 pounds a year, as that is the rate that I smoke. And, that is a sizable chunk or real estate to dedicate to tobacco. I could, but it is ridiculous for me to put that much work into a side-hobby, IMO. Plus, I really enjoy switching blends throughout the day. I have been thinking about growing some of the cigar leaf to try my hand at rolling cigars.
I enjoy the dabble of it, to better understand what goes on before we pop a tin. But, to seriously think about dedicating that much land, time, resources to growing all of my own tobacco... compared to making money growing a cash crop and spending my time making money... tobacco is cheap as hell (even the most expensive blends) and it just makes more sense to buy it.
Maybe when I completely retire, and have the time.