Should I save the seeds?

From a "How to Save Tomato Seeds," a video from Homestead Acres. http://www.youtube.com/watch?v=g3eS5IyoBX4

Cutting open the tomatoes to eat is, of course, the logical time to think of saving the seeds. But you don't want to simply dry them out and leave them in a jar. Here's some instruction from a family who, as you will note, look like they have the demeanor and experience to know what they're doing.

Frankly, I just buy the seeds. Part of the fun is looking at the photos and descriptions on the seed-selling sites in the middle of January and dreaming of the tasty harvest eight months away. Unless you're a commercial grower,  one packet contains enough seeds for three or four years.