The simple explanation from which you can then start getting more:
1.
DVC is Disney and has no relationship with any other timeshares but has agreement with Interval International to allow you to do exchanges through II.
2. You buy a legal interest, which is deeded to you, in a unit.
3. Contract has end date, e.g., Animal Kingdom Villas is Jan 31, 2057, and you relinguish everything on that date.
4. Points represent your interest and are used to make reservations. How large an interest you buy determines number of points you have to use each year (you get a fresh allocation of points each use year), the more you pay the larger your real estate interest and the more points you get.
5. Each room, studio, 1BR, 2BR, or 3BR Grand Villa, requires a certain number of points each night to reserve, the smaller the unit the lower the points and the larger the unit the more points. Sun through Thurs nights take less points than Fri and Sat. Then, the points needed vary according to season -- e.g., a lot less during Jan than during spring break times. In other words, the point system allows you to choose when you go every year -- you are not locked into any particular week -- but the points needed vary according to pre-established seasons and days of the week. Disney provides
point charts showing what you need and for what rooms -- go to top of this page and click on DVC Point Charts. You can call up to 11 months in advance to reserve at your home DVC Resort (the one you buy an interest in) and 7 months in advance at others.
6. If you don't intend to use your points in a given use year, you may, subject to deadlines for doing so during the year, bank them into the next year (so you may have double for the next year) but banked points must be used in that year (you can't bank them again). Moreover, if you want to go and don't have enough points in the use year for what you want, you may borrow points from the next use year (of course you won't then have them for a trip the next year).
7. Other than Interval International exchanges, you can also use points for other Disney hotels, the cruise, and a number of other hotels, adventure programs with which Disney has agreements. Nevertheless, don't buy unless your intent is to usually use a DVC resort.
8. You pay for your legal interest in a unit once, but thereafter you also have to pay annual dues for the operation and maintenance of the resort and property taxes. Amount varies by resort but currently in the $4-$5 range per point per year. The minimum purchase from Disney gives you 160 points, but many purchase more than that particularly if they want to stay in rooms larger than a studio. Essentially, you will find annual dues for DVC to be higher than many other timeshares.