Watsco is a market leader in the North American heating, ventilation, air conditioning, and refrigeration market. While heating, ventilation, air conditioning, and refrigeration may not sound as exciting as other markets, Watsco has delivered exceptional shareholder returns. Watsco's total shareholder returns rank 16th out of 1.600 public companies in the past 30 years, and it is one of only 24 companies that have returned more than 19% CAGR in the same period. Is it too late to invest in Watsco