I think you misread the pricing there..."members save..." $17.98, or so, not the cost. $39.98 is the actual cost.
http://www.dvdpacific.com/item.asp?ID=809273
And you can buy it on Amazon, too
http://www.amazon.com/Slayers-Comple...8601332&sr=8-1
for $34.99!! Save even more.
And season two is out in Dec.