Go! Even if only for one day (make it the Gold Sunday!) the sight and sound of the unlimiteds going bananas is awesome. And I should be frowning and shaking my head at the abuse of historic airframes and engines...
The other classes are spectacular as well, plus there are airshow acts between the races, and you can acquire a pit pass and wander amongst the racers. You won't get bored and you won't regret it... I promise! I hope to get back there this year...