Barring any fire sales, I think it's inevitable that the PS3's price will only be lowered when it doesn't cause the gaming division to be unprofitable, as Sony has said to investors about a year ago.
There is some doubt about when that will happen (it depends on exchange rates among other things), but I would say not before October.
If you want to read some more details, see this thread I wrote in early January (so far the predictions seem spot on):
http://www.vgchartz.com/forum/thread.php?id=55401
My Mario Kart Wii friend code: 2707-1866-0957







