You will never get those accustomed to high resolution 15.4" LCD (1680x1050 or higher) to embrace lower resolution, and vice versa. Well, at least not until they get older and eyes worsen (at which point, resolution independence should be a common place).
That said, there are plenty of reasons to embrace high resolution 15.4" LCD: upcoming resolution independence, ability to view super mega pixels photos with greater details, video editing, graphics design, software development, watching 1080p video with minimal (or no) downscaling, etc. And plenty of reasons not to: harder to read smaller text without resolution independence, requires more video memory, upcoming resolution independence may not work properly across all applications, slower video game frame rates at native resolution, etc.
That said, there are plenty of reasons to embrace high resolution 15.4" LCD: upcoming resolution independence, ability to view super mega pixels photos with greater details, video editing, graphics design, software development, watching 1080p video with minimal (or no) downscaling, etc. And plenty of reasons not to: harder to read smaller text without resolution independence, requires more video memory, upcoming resolution independence may not work properly across all applications, slower video game frame rates at native resolution, etc.