I miss the days that a motherboard was JUST that - a MOTHERboard for OTHER boards. IDE, Serial, Mouse - all on a different card (or cards!) I miss having 10 ISA slots! I hate having to rip the guts outta my system when Serial 1 goes tits up, rather than just replacing the serial card! And what is this nonsense with motherboards with modems on them? WTF? No thanks! And on-board video? Who needs it? Who wants it? Feh! and FEH again! "You can disable it in BIOS" you say? Well I should't have to.
The only reason they do it is do that the big box shifters can stick a high speed CPU into a really cheap crappy board and not have to spend on VGA/Sound cards etc. Joe Public sees the CPU core speed and nothing else.
Personally, I just avoid those boards like the plauge.