Not every domain on the list is WordPress-specific, but they are all related. A number of them are pretty expensive (see the image above), but if you’re working on a project that lines up with one it might be worth your money.
Bradley has over 100 domains listed on his site. If you have something like $10,000 and nothing to spend it on, you could always make his week—likely his 2011—and grab them all up.
Just curious folks: how many domains do you own? Why do you have them?