We added on at AKV this summer while we were stopping in to check out the Grand Californian models. We waited to add on there b/c we thought there might be better incentives but the main reason was to secure Founding Member rights to buy points first for the Grand Californian Villas. We aren't obligated to buy points there but I believe we get a 30 day "head start" from the other
DVC current members.
With some working, we received Aug 08 points (our use year), matching developers points to be used at Saratoga Springs or Interval or
Disneyland within 1 year, $8 off per point that we chose to have credited towards our downpayment, a $500 Disney visa gift card (that we are still waiting for!) and 2 annual passes to either Disneyland or DisneyWorld. We received our Disneyworld ap vouchers last week. Pretty great deal and we had a WONDERFUL guide who went out of her way to help us while we were there and even after. I'd be happy to pm you her name if you'd like---and if you need a referral, I'd be happy to send that as well! Happy shopping!

Lisa