The Simpsons: The Complete Season (DVD) from $12.99 each.  Shipping is free on orders over $25.  If needed, use this Filler Tool to qualify for free shipping.  Here is a screenshot for your reference.  The 11th and 12th Seasons are $13.99 each and the 13th and 14th Seasons are $14.99 each.  Most places have each complete season DVD [...]