A cash hotel isn't DVC. You can rent points and get an apples to apples experience, but you cannot objectively do a financial comparison of a DVC room at BCV to a CRO room at the Beach Club. A Beach Club room comes with pros and cons that you don't get with DVC - for instance, with DVC you can get a multi room unit (suites are available at BCV, but they are really expensive, and usually booked - or you can roll the dice and hope your request for connecting rooms gets met), but you'll pay extra for towels every day. A Beach Club room I can cancel pretty much last minute and get my money back, within 30 days cancelling a BCV room has onerous restrictions on it - and earlier than that I have to be aware of banking windows and my use year and the probability that those points are usable. The value of those things is difficult to quantify. We call the premium we pay to stay in two bedroom units when our kids were little "the nookie tax" - I dare anyone to put an objective value on sex with my husband on vacation.....(its higher than the difference in value between points spent on a studio and a two bedroom - it isn't as high as the cost of a suite at Disney in a cash hotel).
But the real thing that is hard to financially qualify is the true cost of capital, adjusting for risk. There are ways to do it in a corporation, but a corporation isn't a family - there isn't an equivalent of "primary breadwinner is out of work for four months recovering from surgery - long term disability kicks in a 1/3 of the pay." The assumptions that you make in a corporate setting are not ones that really should be made in the average family.
You should certainly analyze your DVC purchase - but you should analyze your purchase against your own needs (which are variable - am I a short term booker, am I going to need to cancel reservations, am I going at least every other year, do I value being onsite or should I consider buying Bonnet Creek?) regarding Disney vacations and your own financial situation (again - variable - am I sitting on a few million in trust fund money, do I have four kids I want to be able to help through college, am I helping support my parents - or going to need to in a few years, is my job one where I know I'm in long term demand, or if I get laid off, might it take me a year or longer to find a comparable job? Am I likely to have significant health challenges, am I about to graduate from medical school and start a lucrative cardiology practice or am I about to leave my job as a social worker before managing to pay off my student loans because I'm having twins, or am I about to retire with ample retirement income and few obligations). All that is FAR more important than "do I save money over a cash room."
But the real thing that is hard to financially qualify is the true cost of capital, adjusting for risk. There are ways to do it in a corporation, but a corporation isn't a family - there isn't an equivalent of "primary breadwinner is out of work for four months recovering from surgery - long term disability kicks in a 1/3 of the pay." The assumptions that you make in a corporate setting are not ones that really should be made in the average family.
You should certainly analyze your DVC purchase - but you should analyze your purchase against your own needs (which are variable - am I a short term booker, am I going to need to cancel reservations, am I going at least every other year, do I value being onsite or should I consider buying Bonnet Creek?) regarding Disney vacations and your own financial situation (again - variable - am I sitting on a few million in trust fund money, do I have four kids I want to be able to help through college, am I helping support my parents - or going to need to in a few years, is my job one where I know I'm in long term demand, or if I get laid off, might it take me a year or longer to find a comparable job? Am I likely to have significant health challenges, am I about to graduate from medical school and start a lucrative cardiology practice or am I about to leave my job as a social worker before managing to pay off my student loans because I'm having twins, or am I about to retire with ample retirement income and few obligations). All that is FAR more important than "do I save money over a cash room."