And with the cost of AP's rising each year, I don't know the numbers anymore. It use to be that you broke even on day 8, but I don't think that's the case anymore. I'll bet mousesavers has the formula or perhaps someone here knows it. That formula doesn't take into account the possible (and I do mean POSSIBLE) room discounts that you can receive. They are still around, but they aren't as deep as they use to be. I remember the day when we paid $179 for the YC/BC and $199 for the Poly. That rarely, if ever, happens anymore. However, if you plan on taking 2 trips within a year time frame, it is certainly going to be a little cheaper depending on how many nights you stay each trip. Also, the flexibility! You can hop in the parks for 2 hours and not feel that you have been cheated.
We have AP's that expired on 7/2 and if it weren't for current financial woes, we would be renewing. We just can't right now. But, I predcit we'll buy new ones next year. I'm sure of it.
PamNC