That's fair enough. I can't remember when I last used my horn on a motorbike either.
The Fiamm horn i've fitted cost me £9.50 including delivery (ebay), so for that price, coupled with the simple fitting process, it was a no brainer-winter-tinker-in-the-shed kind of thing.......And now I will probably become a bit more vocal out there in the traffic now that the sound output is more beefy....