I've run in to a number of situations where after a gig someone will ask if I got a specific shot.  So specific, I wonder why they didn't ask for exactly that before I started taking pictures or even while I was working.

Photography is one of those things that is a hobby for most and a job for few.  Much like playing a musical instrument, the majority do it for the fun of it and the minority get paid to do it.  But nothing is stopping hobbyists from buying the pro stuff, it's available to all as long as you have the money.

When I was a kid, lighting wasn't a thing.  I went to a lot of shows in basements or in crummy, low-budget venues, where the lights were literally an exposed bulb hanging from the ceiling, or work lights.  Pro lighting equipment is expensive!  Even amateur show lights are expensive!  Until now...