come now...who really needs a lambo, ferrari etc... a tercell or civic can still get you from point A to B just as well. Each person has their priority, with computers some are focused on performance, others like getting there in style. As long as you love the system you've got who are we to judge.
I paid way to much for my comp case to get it shipped up from the States considering the x-change rate, could have saved atleast $150 bucks and put it elsewhere in my system, but that's the case I want so I paid extra for it. I still consider it one of my best buys. If he wants to pay to have someone who's work he trusts and knows paint his case then why should we care as long as he likes what he's looking at and using.
I'm sure Bill will be in here to confirm but I'm almost positive he's got a paint guy that's a pro at this. If mnpctech.com does simple paint jobs (and i think that's all you're looking for) I'd guess it's contracted out. I know that's how I'd do it.
As mentioned you could try your local autobody shops, also, if it's an all aluminum case then you can get it powder coated at a local powder coating shop, check your yellow pages. Some places will even let you rent the booth and gun, you simply bring the paint and they set you up to do your own painting, do some internet research first on technique and you'd be ok, its not that hard with the proper equipment.
[edit]Wow I must type slow, i started this after aspire's comment...anyways:
Nagasama
works great for cases as well, although my shop is a little dirty for painting most of the time.
they also have some nice gravity-fed guns for under 100 dollars. which would probably be more suitable for small projects.
I have the same issue, only have one garage and my woodworking and car fixing has to get done in there as well...can get real dirty in there. I use plastic vapour barrier, some 2X2s and a 2 foot square fan to make my own dust free booth.
Oh yeah...gravity guns are great, less to go wrong and like was mentioned, you don't need that much paint for a case.[/edit]