I think some people missed the point of Tom's article. He was comparing similarly priced systems, not similarly equipped systems. His point was that P4 systems can be cheap, but they won't be worth the money because they will perform like crap in comparison to other similarly priced systems. It was targeted at people who see low prices for Pentium 4 systems but don't look at the rest of the specs, not people like us.
Why does everyone think Tom is so biased? I think that his conclusions are usually very well thought out. He never said, "This system sucks because it has a P4." He may have said something to the effect of, "This system performs like crap and has a P4" or "this system is a good performer and has a P4 but costs way too much", but that isn't being biased, that is making an analysis that has good logical reasoning using comparisons with other available goods at the same price. Just because someone says something derogatory against something doesn't mean they are biased.
That, and I would be really annoyed if he said, "Well, the Pentium 4 might cost a lot more and be a lot slower than stuff a lot cheaper but it will probably still run what you want just fine, so buy what looks shiny and is within arms reach!" Then I would never respect him as a reviewer.
If you don't mind I will not talk anymore about this. I'm done now.