When I started to collect dyckia's maybe 15 years ago. There where not to many species in cultivation.
But now-a-days more and more species are making there way in to the hands of collectors.
I see new species on ebay all the time. Thank goodness for ebay and a few collectors that are able to get and share these plants.
You can say a lot about ebay, some people don't like it for what-ever reason and some like me love it. With out ebay these new dyckia's would only be for sale at local sales if at all.