We have a great Mennonite nursery nearby that specializes in pepper and tomato plants. They have 200 varieties of hot pepper plants, some that they have developed; and over 100 varieties of tomato plants. They also grow and sell vegetables and we got the first strawberries of the season on Friday from them.
The past year or two they have sold grafted tomato plants. This year I decided to try two of the grafted Cherokee Purple, my favorite variety. Grafting is supposed to increase resistance to late blight which has really cut into my tomato harvest for the last few years. If grafting does in fact decrease late blight I may need to learn how to graft!