Yes, the $3,000 just for the living and diving is pretty dear, and even though the wrecks are great, yada, you can spend all week diving the USS Orinsky for probably a third of that.
As to the original thread, however. While I would agree that AOW divers at 175' can be a risky endeavor, that does not negate their experiences regarding types of computers used. I can't remember the number of incidences, but I think it was limited to only 3 or 4, and I don't believe anyone got bent. They never detailed their concerns, and are not adamant against the VR3, but do have a preference based on experience. I imagine that they have just as many AOW divers using the NiTek as the VR3, so the cert level, statistically, probably contributes very little to their concerns.
BTW, I've used both, loved the VR3, and am begining to appreciate the NiTek.