OK, I have a 13' esprit that I have had new since 1999. I fold it after every use. I store it rolled and transport it rolled. I roll it 20 to 30 times a year. I have no "pin holes" in the tubes. I have a tear and one puncture wound. The floor has pin holes. I also have a new in 1999 willy 2 that has been partially inflated and stored on a trailer with the 13'er tossed in. Again "No pin holes" in the tubes. The willy 2 floor is in better shape, but has pin holes. I use the 13' the most.
Bound is boatless man