Well, the UK/Australia market has lower prices because the whole reverse import thing isn't a concern.
Toradora is about half the price there as it is here via NISA:
http://www.amazon.co.uk/dp/B00KGV5NMI/
What I sort of dislike about the trend in US anime releases is that they are charging more but giving less. It seems that the days of including Japanese-licensed features (or even OVAs/omakes) are over, and all you are paying for is the show on a disc and perhaps a dub. Oh, and a fancy box and other junk that you don't want but create the impression of value.
I do find it hilarious how Sentai refuses to talk to ANN and the Funimation guys guard their numbers as tightly as NPD does with game sales numbers.
This becomes a self-fulfilling prophecy. Sales are down, so you raise prices to try to maintain the same revenue, then you wonder why sales keep going down and you raise the prices once again.