I'm planning for an upcoming trip and was researching grocery services. Why do people choose to use WeGoShop or GardenGrocer instead of the grocery service provided by DVC on the dvcmember site? I checked the price-sheet at WeGoShop and they charge $22 for the first $100 plus an additional 3% for Disney Guests. Disney only charges $5. So the obvious choice appears to be Disney...but I can't imagine Disney being cheaper on something! So I know I'm missing something.