Chocolate giant Hershey doesn't go on sale very often, so now is the time to jump in despite the cocoa headwinds.When you can purchase a great company at a fair price, it is often a good time to buy. When the price tag looks cheap, it can be a great time to buy.Confectioner Hershey (HSY 1.19%) looks somewhere between fairly priced and cheap. Don't miss the chance to buy it because of a little near-term uncertainty. Here are three big reasons to jump at the chance to own the stock today.1. Hershey looks like ...