Kenny bought a new TV, and a few weeks later, it went on sale. Leo says that happens with just about everything you buy. Is there a way he can be notified when a sale is coming? Or keeps an eye on pricing as it drops? Leo says on Android there is an app called Camel Camel Camel: Wiki Buy is a website that follows it. Also, Honey and Earny are other options as well.
But it may be worth it to call the place you bought it from and ask them if they will refund you the difference. If you purchased it with a credit card, there's a good chance your credit card company will refund you the difference within 90 days of purchase.