Stop calling it roguelike. You're doing a disservice to people who know what a roguelike is, because this game is nothing like Rogue. Also I got bored with it after 3 play throughs, there's just not enough variety.
(If you got bored with it within 3 playthroughs, you probably didn't get to try the rock, slug, or stealth ships, all of which have very different strategies from the starter ship and change the gameplay/strategy up quite a bit. I find rock & slug a lot more fun than the Kestrel. Or maybe it's just not your kind of game, that's OK too. :))
How would you know how much variety it has it you've only done three playthroughs? You haven't seen a fraction of what the game has to offer.
Your getting bored with it isn't by itself a convincing argument that it's not roguelike :P