Amazon has an interesting BD-related "lightning deal" going on now: for a
very limited time, you can buy '
Dollhouse: Season one' for only $27.99 (60% off MSRP). This offer expires today at 2 p.m. PST, or when stock runs out.
The price history for this title indicates that the cheapest it has been at
Amazon is $34.99.
Thanks to forum member BillieCassin.
Update
The deal is sold out now as all discounts have been claimed.