Just saw this thread since it got bumped to the top by Mary's post...
Mary, I'm probably just being dense at the moment, but I'm not sure what your photos are telling us
I think the only way I would consider using grafted tomato plants is if #1, I was convinced there is a real advantage to it, and #2, I could do it myself -- given that I haven't bought a tomato plant in about 100 (or at least 30) years. To me it just sounds like one more way the companies are trying to make people think they can't start their own perfectly good plants from a packet of seeds!
