I would say join for a month, check out all the photos, look at the message forum and see what you think, that's the way I started off. Then I had a once only subscription for three months, then I upgraded to a permanent subscription.
What I meant by "too many good things have happened to me because of being a member" was that I've had the opportunity to be on the guest list for several shows and each time I've met Dita in person, chatted with her and found out that she is an extremely friendly and 'real' person. I have also had my own artwork of her put up on her website. But the most important thing to me is that I have met a wonderful group of like minded people via the forum on there and made some lovely friends, including my best friend who is also in the photo of me next to Dita that I posted earlier.