This is a good question. My two cents worth are from a father of a 2 year old daughter and a 6 year old daughter. I can't tell you how much is too much but I can tell you that the look on my 2 year olds face when she rode the tea cups for the first time is something that I can't put a price tag on! I am going to say we spend about $5,000 a year on vacation time. The last four years have been at WDW ranging from 10 to 12 nights since its such a long drive. This is a lot of money, but at the same time, I made that money and my kids and wifes happiness makes me, so thats it for me in a nutshell!