Now's a good time to do it :)
From now until July 29th (next Friday) anyone who joins the IBC and pays their dues gets a free 1 year digital subscription to Tropical Fish Hobbyist magazine. TFH is a great magazine with all kinds of fishy info in it.
So if you were thinking about doing it someday now would be a good time :) Dues are $20 for adults and $14 if you're under 16 years old. Along with the subscription (remember that offer expires July 29th) you also get a free subcription to the IBC magazine FLARE! which has tons of information in it on Bettas.
I just thought I'd let people know. I know there are a few on here who have said "someday" or are on the fence about joining.. maybe this will help your decision :)