I know there are a lot of happy families with DVC. One thing to consider is the market is very favorable to timeshare buyers and renters right now. I encourage you to check out the offerings at
Sell TimeShare: No Closing Cost, No Commissions, Buy & Sell TimeShares. You can get an idea of what's available at what prices. I found a rental there that I saved $3500 on...a deluxe 2 bedroom week at a Marriott. I think they are also pretty knowledgable about DVC properties and points stuff.