After a 10 year hiatus from riding, I got back into it in 2011. Grabbed a couple of the lightweight ones shortly thereafter so somewhere in the 10 year range, not sure exactly. Only one I broke was my fault as there wasn’t enough room in the frame to get the bottle out properly. Repaired with some G-Flex epoxy and some fiberglass and it’s on my winter bike now. That’s when I started getting the side load ones for certain bikes. Between my kids, wife, and myself, I’ve bought and sold just a few. But I don’t think any of them have over 1,500 miles of use.