Henry Cole on Shed and Buried recently bought an illuminated AA sign and " renovated " it - it did look lovely and would grace any garage interior.
I love these old signs - but the market has gone crazy with v high prices.
So it's repro for me - as Tim says fractions of the price and IMO still look good.
When I used to go to Classic bike jumbles there were often good signs buried at the back of stalls - now they are at the front with a heafty price tag!
I blame us baby boomers!