We bought RIV in three separate smaller contracts. We're a family of 5 - three growing boys, with hopes the oldest will be leaving our payroll in 10 years.
For the OP and why we bought:
When we asked ourselves why we want to buy
DVC -- it was a)we keep going to disney (pre-kids and with kids) b)we want more room c)I want things like a w/d and kitchen accessible. This helped us make the mental leap that we were not really interested in staying in studios as an equivalent to a std hotel room. So I stopped doing my spreadsheets in those terms which switched our "breakeven" analysis.
We bought enough points to do a 1 bdrm every year or a 2 bdrm almost every year (depending on view). Knowing that the RIV is high cost point wise -- I also know that I have a comfortable margin to book the premium views that tend to be left at the other resorts at the 7 month (if we had to book then) or the 2bdrm that we would need for those that only fit 4 in the 1bdrm. Whether I could actually book those due to availability - eh, if we end up at AKL or SSR, it's not the end of the world. I want to eventually stay at all of them anyways.
The points raised that your life changes - yes. But at the point where the kids might stop coming with us is also the pivot point where we hope to make more trips than the one big trip we do now -- so having those extra points gives us the flexibility to use them on 1 bdrm (or studios) more often through the year.
Because of the point requirement -- I did not buy several small contracts with different home resorts as I don't want to chance my reservation at the 7 month mark.
My husband likes the Poly -- but we don't want studios to be our default option -- even if we get two adjoining (I want the in room W/D and kitchen). I love BW and BC -- but the price points/remaining years doesn't make sense. And we love the idea of the gondola -- we are taking a leap of faith on it's operation. I'm hoping it will be easy enough to get to the boardwalk, watch the buskers and come back.
And we decided to buy at the opening offer -- again making the assumption that would be the best price offered during the sales life. Of course if the market tanks, they could up the incentives. But if the market tanks, I probably wouldn't buy and would do something else with the money.
Besides the resale restrictions, the other thing that really had me hesitant was I really wanted the extra bathroom (read: toilet, not just another shower) in a 1bdrm. That was the only major drawback for us. CBR being a neighbor I think is perfectly fine (we honeymooned there) and gives us different food options too.