Let the hive mind of Engadget get that for you.
"We need a digital camera that can be switched on and fire off that first shot fast. It's not a commonly tracked statistic on any review site, and nobody seems to have this information for every camera. We were hoping other readers could inform us as to what small digital cameras can fire off their first pics in under a second (ideally under half a second). It needs to be small, but mostly, just really quick in operation. Thanks!"
It all comes down to the terrible designers.
I had an e-mail conversation with one of them before the 3 came out and he was a complete jerk. He said things to the affect, I am designing it, I can do what I want"... it does not surprise me that it is so expensive and no one wants it. It is sad such a good idea has gone to waste.