Agreed Sumo. I just took the family to Disneyland in January. I did a bunch of gift card hunting the year leading up to it and was able to completely cover our tickets, food, and souvenirs at no out of pocket cost. Used miles for the flights. So only had to pay for our hotel. 5 day trip ended up costing us $750 for a family of four.
Granted the year of gift card hunting I did (survey sites and the such) was a HUGE time investment probably worth $6,500 of my time...but whatever.