Because I cant work out what the heavenly bejeesus all the different options mean! We just want to do a bit of Disney, mouse stuff, studios, Epcot and a water park for 4-5 of our 7 days in orlando. Also doing the space thing so cant be daily disneyers. I am going loopy with fast passes, ultimate, premiun, buy in dollars, buy from an agemt, buy direct, upgrades, planning packs. Please please can someone gently explain or jusy tell me what to buy...