i stopped diving wet about a year ago (and dont regret it). personally i find it easier to take picture in the dry suit since you can make yourself negative (or stop an unwanted accent) without taking your hands off the camera or your eye off the viewfinder.
I went with a DUI and its worth every penny. would I buy it again? ABSOLUTELY! but I would make some different choices...
1. NO shoulder entry.
cheaper, yes. but tends to be a big pain in the butt, particularly on hot days. I also use a ballistic nylon harness and backplate which tends to wear on the zipper a little bit. no leaking yet and after 2 years (i've had it a while, but only started using it exclusively a year ago) its still in good shape, though it will need to be replaced eventually im sure.
2. if you dont fit a stock suit, get a custom one!
Seriously, its not that much more. I've got about 5" of extra material in the legs and not enough in the torso (im a short, stocky velodrome sprinter) and i really wish I'd have spent the money early on to have that changed. I can still get it cut down (but not let out) but i hate being away from my suit since it means i hae to dive wet.
3. get zip seals or SI-5's
this is just another "dont want to be away from your suit" thing. plus its nice to have spares, no worries about breaking seals on a dive, ability to put on dry gloves for cold water diving and you'll save a ton by not having to pay someone to replace your seals.
my biggest suggestion with ANY gear you buy. dont skimp. why buy it twice? Or why pay more to have your stuff sent out for labor later on when you want to use it?
Mike