I got to do that last night in a dream: I was playing Dune II. I was so disappointed when I woke up. I had only just deployed an MCV to start another base, laid down some concrete slabs, and built a power plant, when some Atreides siege tanks showed up, and I sent a squad of 5 tanks and 5 missile launchers to counter them. One siege tank was badly damaged, another one moved in to back it up, and then I woke up.
The restriction of moving one unit at a time sucked though. I don't know that I could ever go back after playing later strategy games.