I know, but it's one more thing to care about, and I don't want to have to care about it. I want to stick a disk in the machine (or these days, a USB flash drive), hit the power button, maybe press a couple of keys and come back in 15 minutes to a working usable computer. I want this to happen every time, and I want it to happen with the minimum of fuss. Furthermore, I want it to continue happening when I update, without having to edit PKGBUILDs and compile stuff - never mind having to explain to "normal people" how to do all that.
I don't understand the mentality that leads people to thin that making stuff complicated means you're somehow "learning how to really understand Linux". You're not. You're learning how to type error messages into Google and read the answers on the forum or the wiki. You still don't understand the problem or the solution, but at least you know what magic spell to utter to make the problem go away. Now that's fine if you want to start looking deeper into how and why what you did worked, and you *can* base a lot of learning that way. Back in the olden days, before even Debian, before quick and easy installers like the one Arch has, that's how we used to do it.
There's no excuse for that now, though. Stick Ubuntu on, and get some work done ;-)