As many have mentioned, pricing tends to be cyclical and it's just a matter of aggressively searching for sales. Target sometimes bundles seasons together (BtVS this year, S1&2=$20) as does Walmart. Last year we found CM S1 at Best Buy for $20, S2 was $45 and S3 was $45. When S4 was released, we found it for $30, which wasn't too bad. Good luck!