I was a gramaphone circle in a pub a few months back. A gang of old dudes sit around, play 78s - mostly John McCormack and other tenors - talk a little about each record and drink pints. It wuz da bomb.
you can usually find a few in any of the second hand shops, probably in the irish section if there is one. ebay is a good place to look too - i got 6 for $2. they also have a load of J McC 78s on ebay for $0.50 or $1 (or at least i saw them at one point but my record doesnt play 78s (you can get an adapter kit though - must get it when i return).
have you read gordon t ledbetters biography? its quite a good read, if lacking in saucy scandal