You are young. There are more important things than vacation. Think long term. Its possible you have, but before you plunk down $15,000 on membership, plus annual dues, plus park tickets, dining, transportation, etc:
1) You want to have children. Will you be a single income family? Will you have the kids in daycare? How much will that be? Kids are expensive, there was a time when I had $200 in diapers a month, plus another $200 in formula. (Plus the $1600 a month in daycare bills). Will DVC work in your budget then?
2) Do your own a house? Do you want to if you don't? Do you have substantial investments that need to be made in your house? Will you want a bigger one when the kids come? How will DVC work in your budget then?
3) Do you have emergency funds set aside? If you lose a job or experience a lengthy illness, will DVC be an undue burden?
4) Are you putting away money for retirement?. Trust me, 23 was yesterday (I'm almost 40) and it won't be long before you start worrying about how you will be able to retire comfortably (don't forget, you'll want to be able to afford even MORE Disney trips when you are retired)!
If all this is set, and you will be taking annual
Disney vacations, staying onsite in Deluxes (or even moderates), DVC is probably a good choice for you.
It hasn't saved us a dime. We now go more often and spend more money when we go. We are locked into vacations at Disney. We are very happy about this....but we aren't saving money. Some DVC members do. Many of us admit our Disney hobby is a money pit and our DVC membership a very effective way to transfer money from our pockets to Disneys!
I'm glad I didn't buy earlier. Between the time DVC started operation and we purchased our contract we went through thousands of dollars of infertility treatments, spent thousands more adopting a child, built a house, furnished the house, did landscaping, went through a period of job instablity - all during which owning DVC would have been a financial burden and added more stress than it solved.