What I find fun, is when I drop the hook directly over a pick, while a guy is standing there waiting to give me signals, but then he realizes I've nailed it and he doesn't need to, but how, as I'm behind a wall or whatever? They don't know I have a camera, I sometimes tell them in advance, depending on the job, but the camera allows me to do a job, drive off, and leave them thinking I'm some kind of wizard. I don't think I've come across anyone yet I've worked with that has mentioned they have worked before with a camera equipped crane or boom truck. If I had the financial need and the inclination, I'd attempt to package up what I did and market it, but that sounds too much like work. I think mine cost me around 3 K, not sure, the hi def wireless transmitter being the single biggest ticket item, the camera itself less than $200.00, the in cab 10" monitor about the same. I at first tried lithium batteries, but for whatever reason had issues with them and found plain old sealed, bur rechargable, lead acid work better, still don't know why that is, but at least they are cheap, $30.00 or so, last at least a year. Besides the 10 watt solar panel I usually will plug it in overnight, I have yet to run out of power on a job.