Well, in the first 15 years of
DVC we've seen eight resorts built or announced.
Assuming and equal growth rate, that's potentially eight new resorts in the next 15 years and eight more during the last 15 years of a longer contract. I don't think it's possible to predict where you'll want to stay when your 6 year old is a teen.
I'm in my mid 30's. I think the extra years will matter very, very much to me in 25 years when I am 60 (and my contract still has about 20 years of use) when I decide to either:
1. Sell my contracts after a lifetime of use and have them still retain enough use and value to be somewhat attractive on the resale market. With inflaction, I'll probably get back what I paid initially.
2. Enjoy my retirement by spending extended amounts of time at Disney without children.
3. Rent my points annually and have another expense paid for each year with the income generated during my older-age.
4. Treat my children, grandchildren, and great-grandchildren to
Disney vacations each year so that they can create the same memories with their families that we created with ours.
5. Become a mini-philanthroper and pick a familiy per year to give young, struggling-to-make-ends meet couples at our church a trip they'll never forget with their tiny ones. Someone did this for us when DS was 2, and it was the best.