IMO these prices won't change, otherwise the sales will stall completely. RIM already announced that these prices will remain, although I believe they will try to up them once a new tablet comes out. By that time hopefully the app situation will improve and they will be able to risk it.
I think the price will have to remain the same. The quad core android tablets being released under $400 pretty much makes rim have to leave the price. 1 thing that will never change is the market for new hardware. Everything equal quads will out sell duals all day long. Its going to take the rare buyers that will pay the same or more for a dual core PB. Just not enough of the rare buyers Im afraid.
i think RIM will launch 4g playbook with/after blackberry 10 launch that way they can adjust the price of playbook. if i were at RIM atleast i would do so to try raising some price.......