PepsiCo is a beverage giant, but it is so much more than that -- and it looks like the stock is fairly priced today. PepsiCo (PEP -0.46%) is one of those companies that has been run so well for so long that investors tend to afford it a premium valuation. When the stock dips down to a fair price, or maybe even a bit lower, you jump on it. That's point No. 3 for why you should buy PepsiCo like there's no tomorrow right now. But let's look at points 1 and 2 first. 1. PepsiCo does a lot of things very well Pep ...