Best Dead concert I ever saw was in 1978 in an old movie theater in downtown Atlanta.
My good college buddy Joe had grown up in San Francisco, had seen them umpteen times, and was a true Dead Head with every recording, legit and bootleg, ever made. He had tickets for both of the consecutive nights the Dead would be in Atlanta.
He was so blown away by the show the first night that HE GAVE ME HIS TICKET TO THE SHOW the next night. An unbelievably generous act, as I had not been able to stand in line to get a ticket when they went on sale due to an exam that day, in which the shows sold out in a few hours.
Well, anyway, as though the ticket was not great by itself, it was seated with some other friends, all of whom were maximum partiers in the Dead tradition. Not only did we all have excellent herb and plenty of it, but I managed to score a half sheet of some extra strong and clean 4-way blotter, which I of course distributed to my friends.
There were 8 of us together, five other dudes, one of them's girlfriend, and sitting next to me, Sally, a to-die-for tall, buxom Nordic-looking blonde, who lived in the dorm next to mine, that I'd been trying to get the attention of to no avail for months.
I ate no less than 3 hits (3 4-way hits = 12) and was tripping mightily to the 5-hour-long concert. The Rococo style of the old theater featured elaborate woodwork, complex wall paper, and a swirling pattern carpet, all of which was going totally ape-shit due to the little squares of paper I'd placed on my tongue.