Running time for this series: 8085 minutes. Price: $326 (up from $299, which was yesterday's price).
Running time for Stargate SG-1: 9900 minutes. Price: $233 (but I managed to get it on sale recently for $164).
Buffy the Vampire Slayer has a slightly shorter running time and nine fewer discs, but it's priced at $180 right now (though, it was about $160 for a while about a year ago).
So what gives? These three shows are all roughly equivalently popular scifi entertainment of equivalent quality. Why is this almost double the others, with very few sales that bring it down to even the ballpark of reasonable pricing? Gyah.