I'm not surprised it sold, used ones have gone for similar or even higher prices. Was it expensive ? For me, yes, that's a lot to pay for a Ford Zephyr ashtray but then again if I was into concours competition then I reckon I'd pay it for a NOS one.
People are paying north of £500 for Elan steering wheels when the only difference between that and a normal Springall wheel is a stamp of Colin Chapman's signature on a single spoke. Now someone getting hold of a stamp to do that little operation would be on to a nice little earner for rainy days !