I agree that there are more choices for 700c rims, but the riders of 27" bikes are not riding fast enough to have their tire choice make speed a factor in their choice of brands. The main thing they need to consider is that the tire is resistant to flatting from punctures and pinches, and the Kendas have that. I am sure that a super-expensive tire like a Continental Gatorskin hardshell will be more durable than a Kenda, but unless someone is touring many miles on trips or constantly riding over broken glass and jagged broken concrete roads, they will be fine with the Kenda in riding around their town. I have put thousands of miles on both Kenda and Pacela tires with equal reliability, and I have noticed no ride or speed advantage for the Pacela tires. If I want to go really fast on rare occasion then I get on a bike with skinny 700c tires.