A no name Espresso machine. I got it as a gift but I doubt it was much more than $100. It works great. I had always assumed I would regret not buying a super expensive one, but it turns out you can have great espresso for not much money.
You can have great espresso for cheap(er) but $100 seems suspiciously low. Manual espresso is about the best bang for you buck possible, but that stretches to $200 or more depending on how fancy you want to get.