I loved that the Gameboy was designed to survive a fall from the average shirt pocket. I love that the Wii controllers pushed gyroscopic technology so far that it allowed the explosion of quadcopters. I loved the idea of 3d through rapid aspect switching.

I loved when Nintendo pushed boundaries, not just through hardware but through gameplay. I enjoy and appreciate the Nintendo polish

I agree with your sentiment wholeheartedly - good gameplay is much more important than flashy graphics. But the polish was nice - pushing boundaries is what made the difference