Don't get into vinyl. 'The internet says they have this! I'll call them on the telephone and buy local!' Store 1: 'Never heard of it, where did you hear that?' Store 2: 'Don't know what you're talking about. We can order it for you, for sixty thousand dollars'

Probably easier if you were looking for a Beyonce (or similarly dull garbage) album. But, presumably, the advice would then be to not get into metal... That would be poor advice indeed.