People buy new systems instead of repairing these days because the price of the parts has gone up. For fixing it is cheaper to fix the computer than to replace the entire unit especially if the budget does not allow you to upgrade a better PC. The obstacle to repair a computer is that they have no idea how it is made. The components are very complicated. The hardware repairing of the computer means replacing the bad part with the good part. Replacing is easy because they are modular. The Pc is a framework for the different type of parts to be plugged into. Computers have limited interfaces or sockets and plugs. It is not a brain surgery it is a game of Google sometimes. Most of the part fixes into most of the machines. If the computer dies and you feel the power supply is to be blamed you can easily change it with the new plug. Neither of the problems requires any engineering training or any intelligence to solve. The solution to all the problems is found by searching Google and watching the videos in YouTube. The installation of the parts falls about at Lego level on the construction expertise scale. It can be done by anyone. All you have to do is believe that if something is already broken it is hard to make it much worse. The cost of the part is only a gamble.
Is getting your computer repair worth it?
Sometime repair is not worth the time or money. Sometimes you run into an issue where the cost of the parts does not justify the project. There are also issues regarding the age of the machine. So sometimes it is better to buy some new parts and replace them to old parts. You can also buy a solid CPU and the operating system which is included. You can upgrade the system this way instead of buying the whole new system again. Sometimes swapping of the parts is a better deal than to buy the whole new system because the new system would charge a lot like buying the new whole things with different parts and installation charge and accessories would charge different. So there should always be an option of computer repair first. If all this repairing system and swapping of parts doesn’t work out then you should go for buying the whole new system.