Given an evening alone with my wife, with my son over at a friend's house, I'm as likely to suggest Robo Rally as a way to spend the evening as anything else.
I'll never understand why WOTC stopped producing this, and I dread the day when my copy wears out.
This game definitely has a limited target audience. But I've never met a fan who wasn't rabid about it. It's a thinking game, like chess, or Risk, with a bit of lady luck thrown in. But it takes a different kind of mind to really get into the game.
It's not for everybody, but if you *enjoy* coding HTML in notepad instead of some web-page-spewer, if you *enjoy* writing quick-sorts, but are still willing to use a bubble where appropriate, if you *enjoy* taking things apart to see how they work, this is the game for you.
I only wish I could find more people to play against.