With 6 out of 10 lights burnt out it was time to take matters into my own hands. I'm happy to report the bulbs are changed and I made it down...but I really hope they last awhile, I'd rather not climb up that death trap on a regular basis. I had no idea that banquet tables weren't solid until I was half way up the ladder. The plastic surface is a bit squishy in fact.
Shine on vintage '80s brass light fixture, shine on!