I see no reason why I should use an OS that only utilizes 10% of that when "copying files, watching media, viewing textfiles". _That_ would be a waste.
So, hardware that isn't saddled with suitably bloated software is thus going to waste? You might wanna rethink that... LOL
Being that I'm a car guy, I always read/hear about the ricers (import vehicle drivers) trying to compare their v4 against American v8 muscle.
nitpick: i4 or flat 4 sure... but I can't think of any car that has a v4
One of the things they try to brag about is horsepower per ci/litre.
They should stop bragging and take note of the current Corvette motor or the pushrod v8s in the Engine Master's challenge that are putting out 100hp/liter. Personally, I have a BMW straight-six and I brag not about the power but about the sound

What are the advantages of Amiga...
...over other operating systems such as Linux?
One advantage is that since the Amiga OS doesn't include every feature that anyone ever wanted, there is no need to know how to configure that many modules/scripts/doodads. I gotta hand it to Linux, some of the distros are getting a lot more manageable for one who is not a professional. Still, complexity is a tradeoff, IMO.
I'll tell you one thing that I like about the Amiga (aside from all the stuff that was ahead of its time). You can backup your entire system by simply drag+dropping the contents of one disk to another. You can also restore everything by simply copying it all back... or even changing the boot priority and some assigns instead.
You could never do this under windows because of certain files being unaccessible while windows is running. Before win95 you could do it under plain DOS, but then long filenames came along and made DOS somewhat less useful (something that I am still pissed off about to this day to the extent that I insist on always using 8.3 filenames)
apologies for OT ranting
