The Dream
With all these new cameras appearing on the market several times a year and product runs less than 2 years it's got to be hell to be in the housing business. This transfers over to the consumer in both the cost of the housing as well as the cost to constantly upgrade the housing every 2 years or so.
Consider this 300D analogy:
300d Camera with lens kit: $1000
Ikelite Housing: $1300
Required ports: $150?
This makes even the cheapest available housing for the Rebel about 1.5 x the cost of the camera in it. Most housings cost 2-2.5 x. This makes it very expensive (perhaps prohibitively so) to upgrade your camera gear anywhere near the rate of digital improvements. And what benifit do I get out of an upgraded housing? The new housing would be just as good as the old one except that if fits my new camera. And does anyone even bother to maintain their housing anymore? It seems to me that for those of us who dive 1-2 x per year the camera will be obselete before the grease wears off the o rings.
Imagine if the camera manufacturers (at the pro level) could just freeze their body styles. Then you could just upgrade the electronics to gain the benifit of the better camera without the added cost of the housing as well. Really, on pro level cameras how many more buttons in different positions do they need. The D100 seems near perfect for me. SLR cameras have been around for decades and I think pros have pretty well refined the correct size of a 35 mm slr and where they want their controls. I realize the UW doesn't drive the market (which is why this would never happen) but the advantages could carry over to dryland accessories as well--one set of vertical grips, dual battery compartments cases etc.
At the very least I think the speacialty UW manufacturers getting into dedicated UW digicams should consider this. S&S or SeaLife should consider upgrading their line of ho-hum 3mp cameras with new cameras built to the same dimensions and button locations as to fit their existing housings. If they advertize this guranteed upgradability, I would be much more willing to go with their system.
Just an observation that I'm sure others share.