If you want info, you're in the right place - the folks here can answer just about anything! They've been helpful to us more times than I can count. Anything you want to know, just ask away!
To try to answer your question, "Is it worth it?" I think in general most people here will say it is, after all most have bought in, so you're more likely to hear the pros than the cons here, although you'll still get a good balance of opinions and folks will be honest about the negatives too. Dizplanner did a good job of giving you some things to think about to decide if it's worth it for you.
For us, I'd say yes it's definitely worth it. We knew we wanted to return to WDW every other year or so, we had stayed in moderate/deluxe, we have a family of 5 that doesn't easily fit in standard accommodations, we are advance planners, though our schedule is variable so we needed the flexibility that many timeshares don't have (ie; we couldn't be locked into the same week in the same location every year), and we liked the idea that it would "make" us go on vacations too.
Have we saved money? No. At least not yet lol. In fact, we've actually added on twice, which pushes our projected break-even point a little farther out.(I think originally we had figured that we would "spend" the equivalent of our purchase price after 6 trips or so, depending upon how long the stays are). Have we received good value? You betcha. We were able to plan a spontaneous anniversary getaway that we wouldn't otherwise have done, and we're taking the entire extended family of 17 down for 18 days, which I don't think we could have pulled off without
DVC. For us, the value isn't about the money, it's about the experiences. That said, it does make enough financial sense to us to make it worthwhile. We like the fact that DVC exercises ROFR, which keeps the value up better than some timeshares, and we feel comfortable that our points will buy the same accommodation 10 years from now as they will today (in DVC resorts anyway), since the total point value at each resort stays the same. Yes dues will continue to increase, but so will the price of regular rooms, so as long as we're intending to keep visiting WDW we won't mind paying less in dues than we would for a week in a mod or deluxe. We also like the fact that if we want to go somewhere besides WDW once in awhile we can use our points to do that too. People will rightly point out that you shouldn't make a regular practice of it, since it's not the best value for your buck, but I can see doing it a time or two over the years just to change things up.
So anyway, those are some of the things we consider to be "worth it", fwiw! But you have to evaluate its worth for you. Happy decision making!