Dinosaur, still shooting film.
However, as David points out with more and more going to digital, i will as well when i get back to full time diving/shooting. Not because i think digital will make me better, but for ease of use. I don't want to drag my scanner, Jobo, chemicals, etc across the Pacific. All of my submissions to mags etc. are in the form of digital anyways (scanned) so why not go digital? As far as i know, all editors agencies etc accept images from a 6mp camera (Perhaps Mr Haas can answer that) so why spend more money for something that i can't afford when i don't need to?
As for the Olys, i rent out several 3040s 4040s etc to people all the time. Sure, the shutter lag is no problem for people who dive a lot and use it a lot. However, most people (general consumers) only take one or two trips a year. However, i see a lot of frustration with it for newbies. By the third day they have it dialed in and learn to pan the subject, getting great results. However, these people now using it 4 times a day for a week. So what happens 6 months down the road on their next trip? More frustration with lag for the first day or so.
I believe that is what the Rebel and others were produced for, an inexpensive SLR with no lag.
Less frustration equals more fun, isn't that the point?
So yes this amount of upgrading is fantastic for most.
HOwever, just like in any field, people with lots of wealth will buy the best
money can buy. And i hate to say it but these people WILL buy the most expensive hammer to drive a nail. Thats just the way some people are.
Do i get a good chuckle when i see someone with the newest best equipment but can't take a photo worth a damn? Too right.
But i don't discourage them, i just try to sell them an underwater photography course so i get some of their money too!!!
ps i worked on liveaboards for a long time, hence the rentals and courses i am talking about