Just a heads up. The Home Depot by me had the round 5 Gallon Igloo beverage coolers on sale for $18.99. Don't know if it's the case everywhere. Didn't see them on the website.
They had them for the same price here. I noticed that a week or two ago and commented on it to my wife, but we figured that was the regular price.
For what it's worth, I think the 10 gallon ones were pretty cheap too...in the $30's.