"The main grunt of the AmigaOS backend runs from ROM - booting from chips is a lot quicker than booting from a hard disk."
Amiga OS4 has no Rom, he simply doesn't know what he talking about.
Also vinyl records sound better than CDs, and DVD-A, and SACD, if they're still going that is.
Assuming you've got a decent record player anyway. Just thought's throw that one in too.