It's been just about a year since I started road cycling, mainly for one triathlon I did last September and I hope to do every year. I purchased a road bike with Kenda 152 tires (700 x 25C). Shortly after asking my sister how often she changes her road tires, my rear tire gave out last night. Twenty-seven miles from home! Luckily, I was meeting my wife and daughter 5 more miles up the road. I ordered a set of Specialized Armadillos. Does anybody have experience with these? Any tire you prefer? How often do you swap tires? I hear a lot about Gatorskins, but they are a bit pricey...