Who needs minesweeper?
Tigerdirect, Newegg, mp3car store and forums.
That's a misconception, that's an excuse.
So please price it out for me what it would cost. No free after rebates, no "I traded this", no warez, just a joe shmoe off the street gets his credit card and buys everything to do what the Ambolech says a tricked out carputer cand do. Sure if you spend a ton of time scrounging around for used deals or deals with great rebates, or black friday, or whatever you can put something pretty cool. But that's not really apples and oranges anymore.
Then factor in the time (there is a cost to people's time). Unless you can figure out how to reverse telecommute (take your home work to work with you and do it on your employers time), people's time is valuable.
I'm not saying someone who is motivated can't create a pretty bad ass solution that could do more than the MS-8. Just saying that it's not as easy or cheap and would probably cost much more to implement if you factor in people's time being worth at least $15 to $20 an hour (or $50 an hour if you were going to have a tech do it).
So great, it's a DIY forum, and great that people build their own rca cables and carputers and whatever else. But everything you do that the manufacturer paid someone to do still has a cost (monetary, time, etc.).
Heck, I just got rid of my Carputer I bought. It was a nice single DIN unit too. But I bought the thing to do a media library and then figured out that they have some nice home audio devices that you drop a hard drive in and just pipe that into an Aux in on a regular video head unit.
Heck, if I could get a functioning CarPC that did everything that Ambolech's does for under $1000, I would jump on it.