I spent a season working as a warehouse hand for a company that hired out function equipment. One time we did a three-truck delivery to the back of a mansion in one of the most expensive suburbs in Melbourne. I helped with both delivery and pack-up, and during the pack-up came across a copy of the running sheet (5 pages), which had enough detail to puzzle out that the function was a Bar Mitzvah.
On the way back to the warehouse, the other two guys in the truck and I had a go at working out roughly how much the event would have cost based on the running sheet and the setup we witnessed. The conclusion was somewhere in excess of $150,000. There was a 10m x 30m marquee, 400 guests with three-course catering plus nibbles, a live band, DJ, clown, magician, open candy bar (which tbh sounds cooler than a regular open bar to me), a bunch of outdoor activities... The cutest thing was that the kid doing the Bar Mitzvah was supposed to sing a song with the band.
Am I correct in asserting that a Bar Mitzvah is roughly the equivalent of Confirmation for a Catholic? After my Confirmation, I am pretty sure we had a cake. I think it was tasty. =)