I'm debating buying my first desktop computer and would like some directional advice. Black friday is coming up and wondering if it would be best to snag a prebuilt system or try building one. The other option I have been considering is buying a used likely-custom built system off craigslist after the holidays, but not sure about the risks in doing that. My budget is around $400 for the case and components, so a budget system basically. I'm not looking for a top of the line system but I do want something that will still be a decent computer 6 years from now. Currently I have a 6 year old HP Pavillion DV6700 laptop which has done very well for what it is over the years.
Any advice and suggestions are appreciated