The best gadgets are expensive, but so are plenty not-the-best ones too. And regardless of how "good" something is, its only worth as much as it does for you. The best useless machine is, well, useless.
What's the most you've paid for a gadget that just didn't cut it, either because it was overpriced, underwhelming, or just ultimately not your style? We all make mistakes, but some hurt a little more than others, especially in the wallet. But if you play on the cutting edge, you're bound to get some nicks, right?