PS3 will not catch up to the Wii, that is a certainty. 360 very likely though, still find it hard to believe that people write off a console not selling due to being too expensive and comes from a brand 240 million strong to one which has sold 8 million more having released a year before.
And no, Brand Power =/= being wealthy, people will not start robbing stores to buy a console due to brand power, simply means that when the price becomes reasonable the console will do very well.