15 years sound about right. Maybe 12 though. And though the games might look better now that doesn't mean they play better. And of course it's always important to know the roots of where games came from and how far they've come.
I haven't played Gotham racing but sure it looks prettier than Outrun but it's not the same arcade like experience. Typical of him though to think graphics=gameplay.
VERDICT (notice the upper case): Inconclusive.