dealsmad men: seasons 1-4 (blu-ray) for $9.99

vote-for16vote-against
vote-for1vote-against

Looks like it's only season 1, not seasons 1-4 as the title suggests

vote-for1vote-against

seasons 1-4 are 9.99 each on blu-ray in single season packaging. combined packaging of first 4 seasons together is 79.99. link only takes you to season 1, but the rest are available.
Is this really a choice?