How thinly can you slice the baloney?

Shimano has so many tiers of bicycle components that I can't keep track of them all. Know what? They all do the same things and they all work. As you move up the food chain the components tend to get a tiny bit more crisp operating, a little lighter in weight and a little nicer looking. Prices, however, shoot up exponentially. I remember once pricing some component to find that Ultegra was double the cost of 105 and Dura Ace cost twice as much as Ultegra.

If you're interested in building a functional bike, RSX components will certainly do you fine and you'll never lose style points because nobody else will ever notice notice.