How much film do you shoot?
6x7 slide or negative runs about $1 per frame with professional development. Plus the cost of buying a scanner, all the workflow issues - trips to the lab, cutting film, filing, scanning, spotting, etc.
A Canon 1DsII will probably cost about $1K in depreciation over the next year. The first two years it was out, the net cost was about $1.5K per year.
I used to shoot $5K in film per year for my personal projects, so I saved quite a bit with a 1DsII. I am doing some 4x5 film, but no way I would go back to medium format film. A lot of headaches.
Look at depreciation vs. other expense over the relavent time frame, not your out of pocket cost.
Best,
Michael