> Bikes are all about diminishing returns. Pretty much everything is about diminishing returns though, so nothing special about bikes. For instance I can (and

> Bikes are all about diminishing returns. Pretty much everything is about diminishing returns though, so nothing special about bikes. For instance I can (and have) build a Miata race car for $5K to do good laptimes at the race track. Or I can spend over $100K on a car to go a handful seconds faster per lap.