You are right and your comments are well taken as well.
The key to good investing is to buy low and sell high. That is easier said than done. Another way of putting it would be to buy at wholesale prices and sell at retail prices.
Wall Street is like a supermarket where one goes shopping. Instead of food one puts stocks in their cart.In a supermarket it is best to buy an item that has good value, but which is on sale. The same holds true for Wall Street.