Still, that is a helluva price hike. The others were only $20 each normally weren't they? I am spoiled too by the two season pack for $12, but to have that big an increase over the previous two just standalone is nuts. I will watch and get them separate, or wait for a sale now.
There has to be something else being added besides the Unlocking Sherlock special, because there is a $9 difference between SD and HD, and for the other seasons it is only a $4 difference. Something else must be included in the set that they haven't revealed yet.