High Wycombe, Buckinghamshire :P
Managed to clear my local Woolworths out of mastersets - 3 of them at £20 a go.
My brother cleared out his local Woolworths in Staines, and there were several sets still left in Woolworths in Aylesbury last time I looked.
An independent shop in my area used to do all sorts of specialised games (lots of obscure foreign stuff too), but they closed down recently
Outside of my family, never found anyone fairly local thats into Heroscape.
Managed to get a few extras off Ebay from USA, but probably like a lot of my fellow Brits out there, bit annoyed about postage charges. Wish I knew someone going on their hols to America so they could bring me back loads of stuff!