I know that many think that the only way is to pay cash but I look at it this way. We currently go to WDW every year and always stay Deluxe. 99% of the time it is at the Contemporary and we spend about $2500.00 on the room portion part of the trip (I am a family of 5).
When I go in August, I will be adding on a 100pt contract at BLT. I will be financing it through a 7% loan for 5 years. I compared the yearly cost of this loan to what I already pay each year in cash for my room and it will only cost my about $200.00 more. I can swing that extra $200.00.
I am fortunate enough that I will actually be able to pay off the loan in less than 3 years so I figure at that point, I will actually be "saving" money each year on my vacations compared to what I am currently paying.
For me, the bottom line is pretty much the same. I have built into my budget to spend that money on lodging for vacation and whether I pay it in the form of a loan or to pay for a hotel stay, I feel I am paying "cash".