I kid, but I actually have been doing a fair amount of riding on what are technically "cross" tires. Early in last year's riding season, I put on a set of 700x30 Kenda Kwick tires (I wanted the biggest tires I could fit on my road bike, and they were cheap.) I proceeded to ride Ragbrai, commute to work, and put in a 175-mile day on those tires. About 2400 miles later, much of the tread has worn away, so now they're a lot more smooth and comfortable than one would expect for the price.

My next set of tires will not be knobby, however!

- Scott