Buying into DVC makes sense if you'd otherwise spend your money paying to stay in onsite deluxe (or maybe moderate) hotels or suites. Only buy the amount of points you'd use for your DVC stays, banking and borrowing in off years or to "save" up points for a future or splurge trip. Using DVC points for non-DVC vacations is generally an overpriced way of getting your vacations.
If you expect to stay onsite at Disney yearly, and you don't want to buy for another year, consider making monthly payments to yourself to save up and buy for cash, rather than taking on debt for a luxury purchase.
Good advice. I'm not crazy about the idea of financing through anybody but DVC (even if it is temporary) because that would just slow down the whole process of buying resale. My only other option would be to buy directly from DVC on our next trip down there. And we're also waiting for the exchange rate to stabilize -- if I bought right now, it would be like paying 20 percent extra. 
For you, it makes sense to buy where you want to stay, even at the home resort you expect to want most often. But for someone who wants to travel around to various destinations and trade via an external exchange company, like RCI or II, it's better to buy a prime week at a good, well-managed, quality resort within a day's drive of home, which one may like to use some years instead of trading if airfare gets too high, and which is a strong trader with lower maint fees and taxes than commonly found in Orlando resorts. If someone is interested in Bonnet Creek, for example, they do not need to own their Wyndham points at this home resort. They may prefer to own at a home resort with lower fees and reserve vacations here.