For the longest time I bought the vitamins in the store. For one I thought that if they were selling them in a major chain then they must have some validity behind them. When I discovered that they were not as great as their claims I still kept buying them. I bought them because I thought the price was fair for what I was getting. Nowadays though I have found that I can find both great vitamins and low prices through the Internet. I have found a great low price vitamin in opc-3 that has taken the place of my store bought brand.