Buying a good stock and holding it for years or even decades is a time-tested strategy. After all, the biggest companies today traded at significantly lower prices before, and if you were able to take the ride all the way up, then you're probably looking at some tidy triple-digit returns.
This is exactly the case for Micron (MU). If you'd bought the stock at the start of the year, you'd be up 240%. If you'd bought it three years ago, you're looking at a return of over 1,400%.