The buy and hold approach to investing has its advocates and detractors. Most of its negative connotations arise when investors practice "buy and forget", failing to monitor a company's underlying performance. Holding onto a dog will never give you more than....a dog, or perhaps a companion.
DKS has been a great example of a stock that has deserved retention over the long term. Great management. Great strategy. Great execution.
At today's close, my core DKS position is up 396% from when I bought it shortly after the IPO. Many here, I'm sure, have gains larger than mine. Moral of the story: you don't need to flip stocks to be successful. Pick a few great companies and let them perform.