digital will probably kill the pro film market (SLR at least, not medium and large) in 5 year as well. higher image quality after about 6 megapixels, plus instant results to see if you got the image you wanted. AP photographers already use digital.
as for the zoom, zooms all suck, no matter how much you spend they will still let in less light than a prime lens. even the best zooms let in half the light. on point and shoots its 1/8 the light at best (widest) and 1/32 or 1/64 at worst (most telephoto). many point and shoots, APS, 35mm, and digital, have 2x to 4x optical zoom (which really tells you nothing since you don't know how wide the camera is to begin with). the digitals usually have "digital zoom" which is nothing but a gimmick. you're not really getting more telephoto you're actually just enlarging a small portion of the photo, as you might in photoshop.
35 mm cameras tend to be cheaper. the film and processing is cheaper. theres more types of film available. higher resolution than APS or digital.
APS cameras are smaller. really small. easily pocket size.
digital cameras are fee-less. no processing, no film, unless of course you want to hold a picture in your hands. digital cameras, even the best, have much lower image quality than APS cameras. resolution simply isn't up to par. digitals also eat batteries. they are fine for snapshots around the house or your own town. but for a trip, you have to lug either a whole lot of expensive flash ram or a computer. plus you'll have to recharge all the time. 35mm and APS film and processing are available pretty much everywhere (even 500 miles from anywhere on the amazon, trust me)