Yeah, well, "a lot of people" is still far and few between. Probably 94% of the people I know don't know anything about their PC, other than how to turn it on, use a word processor, check their e-mail and surf the web. In any case, you are greatly needed out there.
I'd say that the job market, especially in the field of real world business (bagging at Safeway or anything like that doesn't apply to business, because you are more of a pawn), need someone that has higher level of computer skills than the average Joe Smo.
Let's say you are working at a bank, and the server in the bank actually goes down. It won't power up. It won't do anything. Sure, they could get a "professional" in there, but that could take an hour or more. During that time, they cannot service the customers out in the lobby trying to open an account there. That means they waisting time and time is money. Why not chime up and say, "Hey, I got a certification in dealing with building and maintaining computer systems. Let me at least take a look at it." If you fix it, maybe there is a bonus in it for you.
Even at my current part time job, I get hit with PC questions. The publishing company I work for uses all MACs, a nightmare for any PC guru. Basically I've become pretty good at working my way through OS 9 and now OS X 10.0-10.4. But everytime their client is having a problem viewing a file using a PC, they usually put me on the phone. If I could only charge them extra for my time. I've even serviced a G4 tower. Very similar to a PC in terms of the connections. Basically I sucessfully installed a hard drive in the system, which was pretty much routine for someone of my caliber (I can do that sleep walking
). First time for everything, but I never want to service a MAC again....*shudders*.
Is there a decent market for PC repair? The answer is, yes. But now you got the Geek Squad at Best Buy to compete. But you have one up on them. They have up to a month of repairing before they get to another customer. But guess what? You're almost free! You got time on your hands and a lot of users need their computers fixed NOW!
I'd go get the certification and continue from there. Good luck.