Oldest - '80 (ish) AC/DC Back in Black
Best - Luckiest day ever. Rochester War Memorial - 11/8/85 (?). No ticket, but had cash to buy. Was selling "Religious Materials" on very small pages (

). Cop on horseback! Yikes. Just scowls and give me the "keep it down" wave. Zoiks!
I sit on the curb to collect my thoughts. Score the first batik I'd ever seen, essentially in the gutter. Still have it. Still beautiful shape. It's my good luck charm. It's too small, but my wife wears it. Show was sold out, but I did get a ticket. I had to do some hearty preaching, but eventually got in.