Give me a true dual cam everytime, but alas, these days I have to settle for Binaries. My single cam days are over. I shot them for 8 years and was glad when I had the chance to go back to duals. It's nice getting the same speed while drawing about 8# less weight.
As for timing (sync) issues? With the better strings we can get today this is a non-issue. As for tuning? They all tune the same. Setup and synchronization might take a bit of time and effort, but once done it's done (again, string quality), but actual tuning process is the same for all bows.
Besides, think of all the stuff you get to learn along the way.