This is not a club. A new kit comes out usually every 2 months. Sometimes, it is not every 2 months, but that is the normal schedule. A kit is released one month, then new stamps are released by illustrators, than a kit. When a new kit is released, the old kit is retired and no longer available as a kit. The stamps sets, patterned paper, and cardstock will be available to purchase separately when the kit is retired. Dies are a new thing, this year. Many stamp sets have Silhouette images and some are available in the Freebies section. Hope this helps answer your question a little bit.
At this point we don't have files that would work with the cricut as far as I know.
Gina's SVG files ca be used in Cricut Design Space (I think that is the name:-))