I have attended almost every CSIA Conference since about 2000. Why do I keep coming?
I haven't been a system integrator, personally, since 1983. Back then, all you had to do to be a system integrator (or panel house, as we called them) was to get a flat board and write "I R Integrator" on it and hang it on the outside wall of your garage. I owned a manufacturers' rep/distributor firm that had an integration business. Lots of people became system integrators that way.