I can't remember the cost, $500 or so, and you can spend another $1000 on accessories if you want. They are a neat tool. Rated to 60m but I've had mine a bit deeper than that for a few hours and it didn't leak. 200 ft depth was a bit dark, and you'd need a bright day with clear water (winter conditions) to see much. 150ft seems to be light enough to see clearly, just depends on the day and water quality. I've only used it a few times but it has proven useful for understanding the bottom type and conditions down there, and for understanding what the presentation of my gear is like. Attaching it to the vertical portion of the spreader bar seems to work best, pointing back towards the horizontal arm with the bait clipped to it. It gives a surprisingly clear picture. I use hay wire, but zap straps would probably work too (but hay wire is reusable and not plastic). There are numerous settings and I find the wide angle is best since clarity down there is a minimum and you want to capture as much as you can happening around you. So far the footage I've collected has been of ratfish, little cod (can't tell if there are three or 2 dorsal fins (true cod or black cod)), and some sort of little flatfish like a sole. All of those have nibbled at the bait but the cod is the most aggressive. I've yet to even see a halibut. I haven't rigged up anything so that I can troll with it, but I'll do that soon. I'm open to suggestions from those that have done this successfully. I'll probably glue together some abstract concoction of pvc to mount the camera in so it points backwards towards the flasher and lure. You can buy manufactured 'tow pros' and such, but I prefer to do things myself. I get satisfaction from doing things more expensively, time consuming, and flawed. Edit: I collect between 5 and 15 gb of video, or 2-4 hours, at a time before the battery runs out. I have a 64gb memory card in it.