In the sense that yes it works, but the sensor can't produce images up to the standard of today's DSLR's. I can drop the latest film into a 5 or 50 year old camera and have the latest technology available.

I bill the client for film and processing, whereas I can't bill the client for the substantial amount of post processing that is necessary with digital capture. Plus, I hate the time spent doing the boring work (sharpening, colour correction) in Photoshop, but I can send film to the lab and have it back in 2 hours.

Out of curosity, how many of the 7000 images are good? Do you shoot that much because it's necessary, or because you can?

I've never shot that many on a 3 week trip, but have a good percentage of "keepers". I find my percentage goes up with the format: I shoot more in 35mm, but have fewer "outstanding" shots, but in 8"x10" just about every one is good shot because its a much more contemplative approach to taking a photo. When it takes 30 min to set up the camera, you make sure its worth taking before you bother setting up the camera.