It wasn't that long ago that I purchased a wonderful mechanical keyboard for myself. I've used it almost every day and have not looked back. Now, every time I type on my laptop or on one of those sucky Apple keyboards, I can really feel the difference. The one above which I bought is the Matias Mini Tactile Pro Keyboard For Mac.
Sure, they are noisy, but the comfort and response is so much better than the recent flat-styled keys that every manufacturer seems to be adopting. WIRED recently wrote about the mechanical keyboard resurgence and notes that while one company, Cherry, manufacturers a majority of the keyboard switches, a lot of companies are beginning to use cheaper (and just as good) Chinese-made switches by other names. The fault is partially with Cherry as the company drastically underestimated demand and has been finding it hard to keep up with the orders. So naturally, companies that use Cherry switches are going elsewhere.