I spent about $1000 on a Sager 6 years ago, and was very happy with it (including the Nvidia hardware; it was tough to get running in Optimus mode, but works well now).

Last year it had a spate of corrupted video output, with red static all over the screen. Went on for about a week, and I bought a new laptop...then the problems with the Sager disappeared. All well. I think it's still the most maintainable laptop that I own.