They are indeed; I've never had one. Luckily the keyboard I brought in today turns out to be just about identical to the one it replaces, except for that it is cleaner and is missing the little plastic feet because they didn't withstand the impact of a cat that weighs at least a stone.

I wonder if the forced-air HVAC in the office covers everything in dust at a fair rate. It certainly causes me some windchill: it feels cold but the temperature is not all that low. I should get myself some kind of big poncho to wear as a windbreak.