<font color="blue"> I had not thought about the time between shots or manual controls </font>
There are plenty of digital cameras that can take a series of pictures as fast as you can press the shutter release. The Olympus ES-100 (I think this is the model number), which is a few years old, could take 15 in a row before it had to write them to the storage media. The Sony cameras that use a floppy disk are the slowest because of the floppy disk drive in the camera.
I owned a Sony 770 that had as many mannual controls as any 35 mm camera I had, even manual focus, aperture priority, etc.
Digital camera models run the same gamut as film models, i.e., from point and shoot, fixed focus to ones with all manual controls.
If taking multiple pictures in rapid succession is important to you, there are digital cameras that can do this. If you want manual controls, there are digital cameras that can do this. I have two digital cameras now, and have owned 6 different ones over the years. None of them took 10 - 15 seconds to write to the media, even the floppy disk cameras. One that uses Smart Media and one that uses Secure Digital. At most, it takes 2 seconds. How long it takes is a function of the media and the resolution (file size) of the picture.
Yes, the paper can be expensive, but unlike film cameras, you do not have to print every picture you take and you can print several pictures on a single sheet of paper (depending upon how large each one is, of course).
My recommendation is to define what your requirements are, then visit web sites (dpreview.com) and or stores and see what's available. Kinda like tractor buying. /forums/images/graemlins/cool.gif