Vote with your wallet. Lots of variety has been lost forever because old breeds haven't been cultivated anymore.

There is an initiative here in Europe that tries to keep old true-to-seed breeds alive but they have to fight the brutal lobbying of Monsanto and the likes.

In the end it is our fault when we buy stuff for the wrong reasons (cheaper is better, looks, etc).

Arche Noah:

"In the past 100 years we have lost about 75 percent of agricultural diversity worldwide."

"Beginning of the (20th) century there were 2,000 apple varieties, today you can find at the grocery store only max. 20 varieties."

https://translate.google.com/translate?sl=auto&tl=en&js=y&pr...

Fun fact: these days Joe Cocker cultivates old tomato breeds on his farm in Colorado and gets some of his seeds from the Arche Noah network.