My iPad is 5 years old and still runs fine, BUT can no longer run the latest software updates. Apple stopped updating my iPad 3 this year. This means the apps are updating, but my ipad is not, so it runs slower and can't receive some apps. I had the same problem with my 10 year old laptop. Short answer, the ipad itself will last a long time, but after 5 years or so Apple may not update the running system software and it won't run as many apps and will slow down. This probably won't matter for books and other simple programs. For complex games, it depends on whether you can keep up with the updates.