First vinyl I bought (Music for that matter), was around 1981- three 45rpm singles in Woolworths; The Specials 'Rat Race', The bEAT ' Mirror in the Bathroom' & Madness, 'Night Boat to Cairo'.
Think they were all about £1 each
Used to pile all my singles up under my old record player's hooked 'arm thing' (Classic one speaker jobby with three speeds: 45, 33 and 78rpm!) and each would drop down with a nice clunk, the needle would drop noisily and hopefully the next record would play...
Happy days rude boy!
Still got every piece of plastic I've ever bought (edit:except for that copy of quadrophenia I left on the bus that one time)