I have found a few Buffy boxsets on Cd-wow priced at £15.99. Using the link and email code below you should get another £1 off, making a total of £14.99. Most places are selling these at £25. You can get the complete boxset for around £90-£100 from some places but if you just need a few seasons to complete your set this is for you.http://www13.cd-wow.com/searchresults_dvd.php?searchfield=buffy
The link above will bring up the Buff search with the other seasons in it.