What really bugs me about that Kojima quote, is that Metal Gear wouldn't have even EXISTED if Kojima hadn't made it for the MSX. The way that architecture worked, it could not display scrolling levels so he had some come up with some way to build gameplay around that difference. That's where some of the stealth aspect was born in the original MG. You had to walk to the next screen to get away from enemies and then hide, etc.
Every other popular system at the time could do this, the NES for one, but no, Kojima got creative, and decided to build something unique around an existing piece of hardware. And make Konami's biggest franchise.
But yeah, ignore the latest Nintendo console for another generation, and just keep pumping out more metal gears that are just ludicrously more expensive that have better graphics and little else to show for it.