Good points all around, thank you.
And thank you for the reminder that a good viewfinder is an important part of what will make the housing more user-friendly.
You all have made good points that usefulness overall is only judged by how good your ability is to turn your skills into quality results. I don't plan to pose with my housing anytime soon, my goal is to always become a better photographer each and every dive and simply desire to have equipment that lasts through all my misgivings. Responsiveness, durability, and a housing that doesn't frustrate your objectives and does not feel like its working against you are all important to me.
Unfortunately, floods do happen, that is what insurance is for, and for me, it shouldnt be the end of the world. I am very particular with all my equipment and it maintenance and I do sincerely hope a flood never happens, but I also understand that nothing is guaranteed. Regardless of what housing you own, if you just think that you can slap it together and it is going to be a push and play automatic winner every time, then you dont deserve to be suprised in the least when your housing floods. Now, manufacturer's shortcomings, that is a whole different matter.
When I naively started this thread, I didnt know if housings were like diving in cold water -you can dive in colder water with a wetsuit comfortably, and it will get the job done. But choosing a dry suit heightens the your ability to enjoy the dive more and get more out of it. Their cost varies a lot, but there are some noticeable differences. From this discussion, what I gather most is that when you chose a housing, regardless of price or material, you should choose it based upon what tools it provides for you to enjoy your photography and grow more comfortable with it. Now, I don't think there are a lot of justisfication to be placed on how the housings differ in price. It is all determinate of what you want in a housing. Do you want a leak alarm, a particular viewfinder, certain port options and controls? Do you want to use a particular brand of strobes, do you want it to be a certain weight or buoyancy. Knowing how you will use your camera and what you will need for it determines which housing you get, regardless of price or material. If a particular housing has all of these things and costs a small investment or a large one, then that should be what you "settle" for.