Jaysue made three real good points.
1) Do you like to go to WDW at least every 2 years?
2) Would you like to stay on-site?
3) Can you afford it?
Someone else mentioned the cost of transportation from California--another good point.
For me, personnally once those and similar questions have been addressed and if the answer is yes then you need to do some kind of an economic analysis. I find that breaking
DVC cost down to a per point basis is the best way to go.
Our cost per point is roughly $6.00. This is made up as follows, about $2 per point to purchase DVC (we did not finance) and a little less than $4 per point to pay for dues each year. I rounded these numbers for this particular exercise.
I've seen others use $6.00 per point as their basis for making comparisons between DVC and renting as well. I've also seen that the per point cost decreases some if you were to buy into Saratoga Springs because the amount of time you spread the cost is 50 years rather than 38/39 for the other DVC resorts.
So if you were wanted to spend 5 nights (Sunday through Thursday) in a Beach Club Villas studio during Easter you would expend 19 points per night for a total of going to spend one night at a DVC resort and it would cost 20 points then your cost would be 95 points @ $6.00 per point for a total cost of $570.00. Now the question becomes can you do better any place else on site and can you do it consistently.
If my analysis is correct and my math is right (and I will be corrected if it's wrong) this provided you with a method of comparing costs between DVC and any other place you choose.
I hope this helps.