Firefly just went from $25 to $35 on Amazon.com the other day. Boo! :( Its sales rank today is #27 in DVD -- not bad ranking!
Serenity just went from $19.96 (the highest they've had it priced) to $15.96 (the lowest they've had it priced) on Amazon.com the other day. Yay! :) Its sales rank today is #55 in DVD -- not too great.