Last time I looked for this boxset it seemed to be unavailable everywhere except eBay, playtrade, and amazon marketplace.
Seems a great price for all 5 series as each series seems to sell for around £12 individually.
Needed this set to be a decent price as I got seasons 6-12 ages ago from HMV when it was around £15 so now I can eventually get around to watching all of them.
Next cheapest I could find was £55.89 at sendit.
Hope this helps some others.