Dr. Lecter
Contributor
Hi
Of course you are absolutely free to do as you wish and to spend your money the way you like but I can't stop thinking you are trying to make yourself saver by thinking the more tools you have the better is.
But it is really the case?
Do you really need such a complex and expensive computer to dive when all you have to do is to plan the dive and dive the plan
If you think the Petrel is complex, you either don't know much about it or you're comparing it to a BT and your criticism is equally applicable to all dive computers. It's certainly more expensive than many recreational computers, but not by much for many and is less expensive than some. For a rec diver, even though they may never use the Petrel's more advanced features (which won't complicate the computer for them, either) they will probably still find it worth the money due to its easy U/I, excellent battery options and screen color/clarity/brightness, and Shearwater's amazing service and support. Would you really whine this much about someone buying a $600 Suunto garbage dive computer watch? What about a trashy old piece of junk like a SP Luna/Sol?
And there's no denying that a second computer is at least more convenient than one--it allows you to safely continue a recreational dive should one fail. Obviously, when direct ascent to the surface isn't an option, "the more tools you have the better [it] is" is the very definition of safety. If you think going on a deco dive with a single source of information--be it a Petrel, or cut tables and a BT, or whatever--is safe because it's simple, you're an idiot. Personally, I like two separate sets of info if it's a complex enough dive I wouldn't be comfortable just heading to 20' and sucking my deco gas empty in the event of a BT or computer failure, and three sets (one being analog watch+depth gauge and cut tables) for things where deco is measured in hours and the question isn't "properly decompressed or badly bent" but "properly decompressed or probably dead before I make the surface."