JoeSpareBedroom wrote:
And, of course, it would be a crap shoot, knowing whether those seeds would
be the same as the parents. They could revert to something lame.

Um, well.... not exactly. Tomatoes almost always cross with themselves
and many folk save tomato seed without any regard for outcrossing.
They are occasionally cross pollintated by insects but are not
attractive to them. Nevertheless, Tomatoes will grow over 95%
true-to-type without any regard for outcrossers. They do have a
dormancy which requires a certain amount of decompositon to occur
before they will germinate. This means you have to remove the pulp
along with the seeds and soak it in water until a really gross mold is
growing on the surface. This will overcome the dormancy and the tomato
seed will then germinate.

Having said that, I have never heard of anyone who wanted to save seed
form grocery store varieties. Those type of varieties are usually
grown with harvesting and storage in mind, not flavor. Most gardeners
want somthing different and often save their own seed from fruit they
have grown themselves using the above method.
Lawrence