Not stupid at all...you're absolutely right Whimsy! If you have a problem with blight, don't compost your tomato or bean plants...burn them instead. Diane
Live a good and honorable life. Then when you get older and think back, you'll be able to enjoy it a second time.
If you let a few of your tomatoes rot on the plant they will drop and re-seed themselves for next year. No need to buy when you can just let this year's investment pay for itself! That is what I always did (unintentionally at first) and in a few years (in my old garden in Wyoming) we had to leave bushels of tomatoes outside for people to take because I had so many! I would assume all of your plants would be like that too.