For a little while I've had a new mechanical keyboard around the office. By most standards, it's an incredibly good keyboard. It looks good, has a spare USB port, lights up nicely, sounds good when you type on it, and it's not difficult to clean.
But every time I try to switch, the end result is the same. I use it for an hour or two and then move it away, returning to my cheaper, trashier looking piece of equipment.