Has anyone purchased the S3 from Costco? It looks like you can only get it online-not in the store. I'll be updating mt ATT Android smartphone and want to keep my unlimited data plan. It doesn't offer that option online. You have to choose a new data plan. I was just wondering what others had experienced. Best Buy in CA does allow you to keep an existing data plan for online orders. However, they also charge $49 (about 25%) sales tax. They also don't have Costco's great 90 day return policy. I really like buying from Costco when I can.