I didn't say that I thought that was the case. However, it is fairly reasonable. PS3 got trounced in the US. For the US market, MS has a much more compelling package. As I said previous, at least for US folks, MS is bringing much more to the table. Even with the price discrepancy, I fully expect MS to outsell Sony handily in the US once supplies are no longer constrained.
Perhaps I wasn't clear with my subscription comment. I was referring to the $299 plus 2 years of live deal. I suspect that goes live once supply issues ease. The fact that it is not available this holiday is a good indication that supplies will be constrained. When that goes live, MS can eliminate the upfront price gap WITHOUT reducing the price. Sony has a more difficult time with the strategy as their fans aren't used to paying for online yet, although a side benefit of requiring plus is that it does make this potentially easier for Sony to offer.
The key variable in all of this is supply. I find it hard to believe that sony will have 10,000,0000 available in the first 6 months. However, that would be great justification for the price.