Here's mine. 1978, I was 8 years old and had some birthday money so my mother took me shopping to our local department store called 'TSS' (which stood for 'Times Square Stores'). Nestled in a corner of TSS, was a standalone semi-independent shop called 'Record World'. I had a $10 dollar bill, and this is what I bought:
Oh, and I'm pretty sure I got change back for my $10.00 bill.
My sister Robin and I wore that record out, for sure. Everyday after school, we'd race home and play 'Grease' and pretend to be Sandy and Danny.