Sheesh.
Count yourselves fortunate you aren't in Washington State. Minimum wage here is $8.55/hr. It doesn't take much shine before someone is worth over minimum. $9 to $10+ for non-management positions (with experience) is common here.
I sort of understand the thought around not paying a lot for makeup/breakdown & threading. However, were I again to hire a projectionist, I would want that person to know his position was more important than the people who start with the brooms. A little more money can do that, along with an expectation that the person you put in the booth will extend those basic skills to a working sense of what's going with the presentation throughout his shift.
However, being a family-run operation, we never have openings in the booth... it's just too important to us. With the assistance of one of my daughters, I've installed, programmed and serviced all our equipment. My daughter can do everything in the booth, short of wiring, computer programming and mechanical disassembly of the projectors. She also manages our concessions and staff. Next to my wife (who runs the boxoffice/financial operations) and me, she's the highest paid employee here, and I'm very happy to write her checks.
As has been said here, this is probably less a matter of what we're doing in our various parts of the country, and more a matter of what a respectable wage would be for whatever import you put on the position.