Just as bad are some charity shops. I have one near me with the occasional album I would like but not at their inflated prices. When I have queried these or made an offer they just pull out a copy of the annual "Record Collectors Guide" and quote that - despite being ignorant of condition, release details etc. There is also a used vinyl / CD store that uses the same approach but is very knowledgeable and asks for an "offer" which, if sensible and not too greedy, will generally be accepted especially if several purchases are involved.