I shoot an Elan 7N. On avearge (all film types considered) I spend a quarter each time I hit the shutter release. To switch to digital (which I am going to soon) even a used 10D is going to run around $800 and then I need a bunch of extra stuff (cards, lens, vertical grip, printer, Photoshop, ink, paper, PC upgrade, etc). But even if I spend $2,000 on everything, I have to take 8,000 pictures to make it all pay for itself (so to speak). Considering I don't take 8,000 images a year (yet) it seems like a silly investment, especially considering the upgrades and new products that will eventually come out to make a current system less than desireable. I simply can't afford the constant film expense right now, and more importantly, people who would hire me usually choose not to when they hear I'm still using film. They think that digital is the magic bullet to getting good cheap photos. And I would rather get paid than be a "film purist"!

If you can afford it, go with film. It's not as instant as digital, but the digitals you own can serve as "Polaroids" to make your film exposures better on location. But on the other hand, simply having a digital can be the difference between getting the shot and not, since your shooting capacity is essentially limited only by your memory capacity, not by the number of film rolls you brought. On the other foot, pro slide film is now rivaled (and surpassed in some cases) by top-of-the-line pro DLRs. But those are very expensive. Also consider the low noise at higher ISOs (see the Canon 20D test on this site) compared to the graininess of film at those ISOs. Film is on the downslide right now but digital is also still in its youth.

For art-type images, you'll want to go with film. Remember that with film you can always scan at a higher resolution than any DSLR out there, if you need digital images. And with pro print film, your exposure latitude is greater than digital, so you can get more shots in more situations.

It's a tough call, but all in all, you really can't lose with either system. It's all a matter of what best fits your current needs, the needs you expect in the future, and most important, your budget!
Good luck!