RS232 as far as a general purpose consumer interface is
dead.
Interestingly when I needed to configure a *10Gbps* interface today on
An HP 3500yl-48G switch, I needed to connect via RS232 (and VT100
emulation
Mode!!) to assign an IP address to the switch.
I'll grant that consumers are not buying 10G-capable switches today, but
it's interesting that such a new switch still expects you to initially
say
"hello" with an RS232 interface. (OK, the default is DHCP, but the point
still stands).
My RS232 breakout boxes are still a way from being retired.
Antonio