I also have a Clevo/Sager laptop which has lasted a good five years. I originally got it so I could travel by air with my computer easily, but it worked well as my main workstation for a few years and for a while I took it back and forth to the office every day.
I wouldn't expect any laptop you purchase to outperform a comparable desktop build in terms of price. An equally performing desktop PC will probably cost a little bit less, so you have to decide if the portability is worth it. I know I wouldn't want to haul a desktop around too often, even a smaller one - I put together a mini-ITX system for my home PC recently so it would be somewhat portable if I decide to move, want to take it to an event/LAN, etc, but it's still pretty sizable and definitely more 'fragile' so I wouldn't want to lug it around on a weekly basis.




