This was a passing thought here.
If you're in my general age group you would remember when you aquired a bag of buds you would find a few seeds and sometimes you would talk to your connection about finding 3/4 of a gram of seeds from a 1 gram bud to now that you would be happy if you had found a seed in a bag. It's funny in an ironic way one time seeds were basically free too now you have to trade or buy to aquire said seeds.
Been thinking the same thing lately... used to be a lot of nice dro/haze/widow and all that floating around and I'd chuck the seeds right out... kicking myself for it now... can only imagine what was in some of those things!
This year was the first year I had to resort to buying some seeds. Prior it was what I would find in a bag to add to the genetics that I have going. And that has been at least 2 years since I done that. I also have been growing for 20 or so years now.