I built some software a decade or so ago that did ticketing / concessions / gift cards / inventory / time clock for smaller movie theaters. You wouldn't believ

I built some software a decade or so ago that did ticketing / concessions / gift cards / inventory / time clock for smaller movie theaters. You wouldn't believe how crappy what they were using was. Still, selling was a royal pain; either people are doing all the above w/ paper and it's hard to demonstrate how much better software can make their lives, or they're locked into a competitor with enormous annual fees. It can be done, but it's not as easy as the blog author makes it sound. Also, don't underestimate the technical support load of dealing with really technically incompetent people.