There are reasons why no retailer can do this
First of all, most electronic products, like your laptop, is
protected under trademark law, thus any unauthorised access to the
internal hardwares of a laptop will void the laptop. Also, before
repairing a laptop, you have to bypass some password protection,
like BIOS boot, which Courts has no way to access.
Also, even if Courts suggest a partner-ship repair service with
lets say HP. HP will never agree. No companies will agree. They
will never authorise anyone to gain access to their computer's
built legally.
As for the mp3 your company sells, it is easy for you to send for
repair because if a mp3 is broken, then it is borken. For laptops,
problems can be caused by lots of different reasons, and thus the
repair fee is at different price, even if under a warranty. Also,
if the fee HP offered is too high, the customer might choose to
repair his computer else where, and thus you cannot just mail a
laptop for service. You have to bring it over since lots of
decisions are to be made.
Enough bullshit from me, I think Courts service really sucks. I
usually avoid it. If i want a notebook or mp3, i usually go to
Apple shop instead. As for furnitures, i prefer Ikea