Will there ever be high-end Linux laptops?

As a happy Linux user, I am glad to see a sudden increase in the number of computers on the market with Linux pre-installed. However, most of these machines are low-cost and low-power ones, while the high-end machines are still dominated by XP or Vista, usually loaded with tons of trial wares. Will there ever be a good computer like Sony SZ, Thinkpad T or X, or Fujitsu Lifebook Q, with Ubuntu pre-installed on the market? Am I the only person who is interested in seeing such a machine?