With many companies offering build-to-order PCs, where they can source components at bulk purchase prices, is there any value in building your own PC. Is it still a good option for everyone or is it only cost-effective for those building fringe equipment like high spec gaming platforms? Don't forget to factor in the time and effort you spend building and configuring the machine.

I know that it is often worthwhile as it builds understanding of your machine, gets you exactly what you want, etc., but is it still good for your wallet or would you be better off paying someone else to do it and spend more time doing something else?