Whoa...Lets back up a bit here before we get too far off the track.
Out of the huge number of shots taken by the OP and printing say, 250 of them (by his estimate), Costco charges $0.15 each for 4x6's. So we have an expenditure of $37.50 for prints.
Not considered was how much to develop film? This being a neccessity to decide on what prints to order.
How many shots can be reviewed and deleted in camera when using film?
How do you change ISO in a film camera?
To TAKE an image and review it is FREE. After that and you wish to print (and reprint), then costs are involved.
I have seen no indication from any camera manufacturer, that PRINTS are free. This is an assumption that has come out of poorly thought through logic.
No film costs + reusable CF cards = Free images. Broadly taken, this is a true statement. Anyone who clings to this train of thought from that point on is at best quite naive.
The way that the film market and users are declining, this will soon be a non-subject for discussion.
A 40D, a 30D, some nice glass and a great Shooting Partner.
"...As in music, so in life."