Im not so sure another price cut will make much of a difference in the US for the ps3. If im not mistaken, a standalone ps3 costs US consumers $249, although most would prefer to buy a bundle of some sort, which costs $299 plus. The price is pretty high even in the US, but its not an insane price, if people wanted a ps3 they would have bought one by now. Another price cut would spur sales on but it would not have a drastic effect on sales. The 360 is the console of choice in the US by quite a margin, irrespective of price. Given that the 360 is cheaper than the ps3 and has much better bundles, this is another point against the ps3. Also the Wii U is coming and the gen as a whole is slowing down.
In europe and in most other parts of the world, the price of the ps3 remains to be a big stumbling block. I remember a similar point in the ps2's lifetime..almost everybody had a ps2, almost all of my friends had one. I look at the situation now and im a rare one out of my friends who has a next gen (current gen) console, let alone a ps3 and we are 5 - 6 years into the gen. I would say the ps3 is two price cuts away from being truly affordable by the masses. The reason why i say two and not one, is because one pricecut we will see an affordable standalone ps3 but another would give an affordable bundle. And a standalone unit is not an attractive buy at all.
This is how sony lost most of its marketshare to 360, and to an extent the wii, but mostly the 360 which has an affordable base price for the standalone unit and great bundles worldwide. It has been this way from the beginning of the gen. Its actually quite amazing by how much ps3 outsells xbox in places like africa, middle east, and asia, where people have less money to spend on such things.
Just for some background knowledge and where my experiences are coming from, i live in South Africa, and as far as i know we get out prices straight from Europe...and it seems as though we have similar buying trends and preferences.