Having around 1000 people caring enough about our future platform to join this Amiga club, is a very good sign already. These people are very likely to give good support to 3rd party software developers as well. It is a solid minimal consumer base, which is likely to get much larger when the platform becomes available on the market!
IMO the club membership should be continued to be offered, even after the promotion period but in an alternative form, as there still are tons of people who haven't heard about the club yet, as they are on vacation or aren't reading on the internet that much.