The average lifespan of a Gaming laptop is 4 - 5 years. Like everything, you need to take proper care of the laptop. First of all, don't drop it. Secondly, if the laptop runs hot, make sure to cool it down and Don't plug your laptop in charging all the time. Upgrade when possible. Last but not the least, clean your laptop once in while or give it to professionals for regular maintenance. Make sure to save some money and buy a good one with great processors that meet your needs.