You & I come from two very different schools of thought, I guess.I tend to agree, but if that's what I must do to get a bigger sanctioned HD and still retain a warranty (plus it saves me the time and aggravation of doing it myself), then so be it.
If I want to upgrade my computer, even something designed NOT to be user-upgradable (like the G4 or a laptop), I'm going to do it myself. I'm confident in my skills and experience enough to know that I can swap out a piece of hardware.
I also understand the target market of the mp3car.com store. They are marketing it at Average Joe Moron (which is obviously not you, so please don't think I've got my flamethrower on! ). It's not aimed at most of us tinkerers nd hackers and code monkeys.
Based on the simple fact that the specs of the G4 aren't sufficient for your taste, that tells me that you aren't their target market.
This is meant to be an in-car iPod killer, basically. How many iPod owners upgrade the drives in their units? (Rhetorical question - In this crowd, I know there are some that do and have!)
And that brings me back to my logic that I stated previously...
If you want to tweak your hardware and modify it, then the G4 isn't for you. You should look into building your own or purchasing a pre-built unit that may not be as sleek and cool-loking as the G4, but will allow you to change whatever parts you want as often as you want.