A lot gaming laptops are based on a Clevo chassis - Clevo makes barebone laptops unbranded to sell to manfacturers and OEMs. The OEM or manufacturer then fits parts to spec so usually components are easily accessible from a repair point of view that is.
I can also recommend a Clevo-based laptop. My laptop is not really a high end one, but having grabbed a promotion, the resulting configuration can keep up with most recently launched games in terms of performance. And you do not pay for a brand, which is a big plus
Don't know how easy it is to upgrade or replace components on Clevo laptops, but the chassis is both easy to open and to clean (if you have a minimum of hardware knowledge).
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Allowing the user to play with a handful of graphical options matters more to me than having the best graphics ever seen on PC. Having presets or a "basic" interface is okay, as graphical options can get a bit technical and overwhelming for normal users. But, please, let me tune down bloom and/or motion blur if I want to, for example. I have stopped playing some games due to this...
