Try installing Oracle products on UNIX/Linux without X. Better yet,
try doing it on a remote machine on the other side of the world.
While KVMs like a Dell DRAC or Sun LOM, and virtualization consoles
help a lot, it's nice to be able to "ssh -X" to a remote machine and
run that installer back to my local VNC server.
If I had a decent X windows implementation locally, I'd use that
instead of VNC.
X had it's issues. But it's still alive and well - maybe because of
Java ;)