As more members buy into
DVC and keep it for longer, more will look beyond the DVC resorts for variety in destinations. There is much more DVC availability in Interval now than a couple years ago. DVC could easily change their external exchange company at the time of contract renewal but if so, it would most likely be to RCI. No other external exchange company (besides RCI and II) can currently offer the wide selection of destinations and decent availability that members sometimes want for external exchanging. So owning a prime week at a high-end resort which is dual-affiliated gives the best chance of being able to use it to exchange into DVC over the next several years, if that's of interest to someone. At this time, I doubt DVC will drop II for a long, long while.
Bottom line is, if you want to be able to book DVC vacations at least every other year and if you want to have year-round availability of whatever room size you want on WDW property (with early 11-month planning at your home resort), then buying in is the only way to secure that. It puts you in control of your options and you pay a premium for the privilege.
Second option, if you can be very flexible with travel dates and with DVC resort selection, if you want mostly full week stays, if you don't need a larger unit during prime holidays and school breaks, if you may not be visiting a DVC resort every year, and if you can plan 8-11 months out (the earlier the better), then trading in with a good timeshare week elsewhere can be much more economical than buying DVC. If it will fulfill your needs/wants, it may be preferable.
We own three different timeshare weeks which have traded successfully into WDW DVC resorts and a fourth into HHI DVC. None of these have been last-minute flexchange confirmations, so these weeks have the trade power to do this. They are dual-affiliated w/RCI and II. The right reasonably priced resale week at the right resorts can do a LOT to secure
Disney vacations at an excellent price but they DO have limitations, as mentioned above. Feel free to email me about this.
Third option, renting points from an owner, is probably best for people who want a rare vacation onsite at WDW, unless they only want a long weekend or they want premier season. Those are expensive on points rentals. But 5-night, midweek stays can be quite reasonable, especially when kids are normally in school. With renting, there's no ongoing purchase investment, no annual dues commitment.
Fourth option, offsite... tons of great timeshare resorts (which we also enjoy!), vacation homes, a whole range of quality in hotels from super-cheap to high-end luxury pampering... but that's another forum...
