The only way I'd ever pay $300 for this eBay item would be if it came with a time machine that would take me back to the party itself. No one really wants a snapshot of Joe Jackson in a plaid leisure suit posing with a bunch of strangers. The real prize here is the actual invitation to the press party the Jackson family threw back in 1973.
On the J5's 1973 Soul Train appearance, Don Cornelius ran some footage from the party that included Randy hobbling around on crutches and Tito showing off his first-born son. A magic moment came when Don asked Joe the baby's name and Joe couldn't remember his own grandson's name, clumsily covering by saying "We call him... uh, Jackson. Little Jackson, that's what we call him." (For the record, it was Toriano Adaryll Jackson Jr, a.k.a. Taj. I could almost see Joe not remembering IF HE HADN'T NAMED HIS OWN SON THE SAME THING!)
Other fun involved the J5 playing basketball against the Temptations and Marvin Gaye. Here's Jermaine going up the Temptations on defense (good luck with that, Jermaine!).
And here's the whole group posing around the pool. I love looking at the awestruck faces on all of the kids on the left side of the photo, contrasted with the little boy on the right who is more interested in playing ball. But the best is the tiny interloper who sneaked into the group photo, standing right next to Michael like he was a member of the Jackson 5. Maybe he thought since Randy was on the disabled list, they'd be looking for a replacement.