Yes ive used the PC " can do more " excuse as well. Thinking about it though. The over expenditure when buying a new PC is for gaming only. We could all buy a basic Internet system for the other stuff and a console for the gaming itch but we are like children aren't we. My going on 10 year system still does the job but just wanting the latest and greatest to play a couple of games now and again.Because you can do more than play games on a PC.
I use mine for all my multimedia purposes, I don't even own a TV just a 32inch monitor.
Maybe if you have kids still living with you a console is mor beneficial, especially in a living room