Why should you upgrade PC after using several years? Because manufacturers make PCs with lowest specifications to show attractive price tags. The spec must be marginal. They work fine mostly for the initial 18 months but turn sluggish after a few updates. The wise buyers always prefer upgrade to extend its usability, capacity and longevity. Each upgrade not only solves hardware bottlenecks but also educates them. They know more and become more confident with their PC systems. Continuous upgrading can extend the lifespan of a PC to 10 years. The other buyers restart their shopping cycle every 2 to 3 years, getting on the sellers wagon again. Since buying frequently, they have low "budgets". They buy 3 to 4 PCs in 10 years hence. Who pays more in 10 years? Who gets most frustration in 10 years? Who suffers most downtime in 10 years? This is why experienced car owners buy spoiler kits and suspensions to upgrade their cars after a few years ownership. Those were expensive if opted with the initial sale, but become affordable & necessary over time. Upgrade is always way to go if you get the correct honest advice from the right shop.