YES! We bought originally in HHI and now in the process of an add on in SSR and feel, for a family who vacations at least once a year, it is worth it. There are so many ins and outs and different ways of doing things, so you might be better off asking particular questions, but generally, I think you will find all positive responses here and a heck of a lot of information from reliable people!
Kathy and her clan
Mom & I joined DVC in July 2003. We own @ Beach Club Villas. We wish we had done it sooner!!! If you go to WDW every year or every other than DVC is right for you. It is a financal commitment though. Good luck with your decision!!!