Buying vs Building

for me buying is currently better do to my lack of knowlage of how to put a computer togeather. upgradeing a prebuilt computer would probably be my choice because that would be unplug ram#1 and install ram#2 so i could do that easily enough. Building a computer would be better for someone with advanced knowlage of cpu systems because they could personlize it. hobbists can have fun with parts hunting and gamers can have lots of ram and a great grafics card without needing to get a high end super high end hard drive. There are also quite a few advantages to getting a prebuilt computer first you get it immidately. #2 all of the components are compatable with each other. #3 for customer support you only need to have one destination.