If you are interested in expanding your DVD collection, there are a few that are on sale for under $5. Amazon often changes their prices, so be sure to check out the prices before purchasing.
Airplane! for $4.99 on DVD
Horton Hears a Who (Single-Disc Edition) for $4.99
Happy Feet (Full Screen Edition) for $4.99
The original Episodes on Blu-Ray for $36.49. This is normally $69.99.
Blazing Saddles [Blu-ray] for $3.99
The Sandlot for $2.99
Super 8 for $3.99
Red Riding Hood [Blu-ray] for $3.99