Yes I have a PC Shop, it's been around for a LOT of years so I'm not too worried about anybody else starting up, there are several PC shops on the Wirral, some of which change their name on a regular basis to (allegedly) avoid bills from suppliers and warranties with customers, then, a week later with a nice new name, open up in the same place.
When I started the shops it was more of a hobby, our prices aren't high because I own the buildings no rent and the biggest wage (mine) is paid by our two main corporate clients (NHS & MOD).
If you leave someone with a laptop, you will get ripped off, 100% this is going to happen, it's not a dig it just will, when people have to pay for a repair and they have a working unit it suddenly takes a back seat, and then when you get the laptop back you have to format/reinstall it again, securely, to protect other users data, that's not customer care that's just doubling a workload and creating a headache.
We keep a lot of laptop screens in stock, so most are done within the hour or next day, yet you'd be amazed how many people take months to collect them. I'm not preaching, it just how things work in this area, in others EVERYTHING is collected within 48hrs.
We know what customers are like with PC's, the number of people who ring you 20mins after they dropped it off when they asked for a complete wipe and install, I think in the new place we're going to have a number of PC's you can use instore whilst you wait, just so no-one gets withdrawal symptoms
Items DO fail, laptop power supplys being the main one, you can see that pins have been broken or leads have been chewed, but as they've had it less than a year are convinced we should replace it for free, as it's not their fault the dog ate it (it's not mine either
The thing is with Wiki that you are NOT allowed to advertise, most people on here know who everybody else is, what they do and the skills they have, so arriving on the doorstep and shouting "I can do that" isn't going to work (I know, Mark told me off for it more than once).
If you want, send me a pm, tell me what you can do and the experience you've had and I'll see if there is any work I can pass your way.