The IIgs is a 16 bit machine, and is a box with a
detached ADB keyboard.
These are very common too, and usually not worth anything unless they've
got
some third-party upgrades like an accellerator, a SCSI controller, or
something like that.
The GS is my favourite Apple II -- they really are wonderful computers and
it's a shame Apple hobbled them to avoid stealing Mac sales. With a
Transwarp, SCSI HD, GS/OS and Marinetti, it makes a surprisingly useful
little system.
Sure if you spent more then the cost of a mac to get all those upgrades when
new. I like my IIgs and have one setup like the one you mentioned without
the Marinetti (TCP/IP stack, will try it). Even the base units with RAM
expansion are decent for old IIgs games, or Apple II games. I just never
wanted the older II's even when offered a II+ locally for free.