I have a Model M at home, and while I find that the sound helps me keep my rhythm while typing, it can be <i>really</i> annoying in an office environment.<p>At my last job, being unhappy with the keyboard I had, I brought the Model M to work one day (it was just gathering dust at home). While typing was much more pleasant, I quickly discovered I had to stop typing whenever my coworker's phone rang. This, in turn, quickly became annoying for me, so at the end of the day, I packed it up and took it back home.<p>The Model M is one of the best keyboards I ever had the pleasure of using, but I would not like to inflict that level of noise to coworkers at the office.<p>(The best keyboard I ever used, interestingly, was a Natural Ergonomic Keyboard 4000 made by Microsoft. I am not a big fan of Microsoft, but they really know how to build a great keyboard. Unfortunately, this was the only keyboard I ever managed to spill tea on... <i>and</i> on its identical replacement. I took that as a hint that some higher power might not want me to use Microsoft keyboards.)