First timers to DW 3-21-04 - 3-26-04. 3 adults 2 kids ages 7 & 4. Ressies at the Swan, Club Level. I want to visit the parks (no water parks 4 me) but I will not be riding anything. The others will be and want the freedom to come & go. Where's the cheapest place to buy them and when should I buy them?