Agreed. It's hard to find data, but based on knowledge of many IT departments, HP corporate-line machines (not the consumer line and not necessarily the small business line) are among the highest quality pieces of computer equipment I know of. So often when I've had to dig in, I found smart, careful engineering down to the smallest details. Also, they publish extensive, detailed, easy-to-find, and accurate specs, which is unfortunately rare.

The results are that they last forever, well past when the user would like something newer and shinier. There's a 12 year old laptop not far away that, after maybe 5-6 years of heavy use, is in perfect condition other than one USB port (IIRC).