I don't have server myself and I don't think I know about them a lot in general (the setup process etc.) but I have always wondered what benefits does the power hungry and big G5 tower offer instead of, lets say ARM -based small computer or even an Intel Atom box running a Linux distribution? Not to start a war but just wondering
A lot.
These were the top of the line computers back in their day. You either got the newly introduced Mac Mini, iMac, the Powerbook/iBook, or the Power Mac G5.
Power hungry, yes, but worth it. You CANNOT run something like Pro Tools, Logic, Autodesk Maya, or anything rendering software that depends on the processor and graphics cards. Maybe a really old version of Maya, but man, it would just be utterly slow to render scenes and it'd probably make your processor explode because it can't handle raytracing, shadows, and all the nice 3D stuff. Audio is especially hard because you can have about 100 layers of tracks being compressed together.
Linux is great, but you have to deal with not using standard/industry used applications, and have to figure out workarounds for everything. It's great for compiling, but I'd rather work in a OS X/Windows environment any day. It's had so much time to mature, yet hasn't. Ubuntu looks great, but pretty much nobody actually supports it other than the browsers.
That's how I feel anyway.