for one thing Canada post considers any package more than 15mm thick a "Parcel" so to send a package with a roll of film (say 100gram, 8.00 in. X 5.00 in. X 1.50 in. in the same town costs $10.98 each way for three day service. (and yes since it is the same town they can deliver it the next day, THEY DON'T)
Interestling that I can send the same package to Kansas (home of a famous Mail order processing lab) as "Small packet USA Air" for only $8.03. (mostly because it does not then incur our HST, simalar to a VAT. that takes two weeks with no tracking. If I want it there in 30-4 days, it becomes "Exprespost USA "at 32 dollars and change.
needless to say their are few mail order labs left in Canada.
Charles:
This is probably one of the consequences of the disappearance of Kodak (and other high volume) processing.
When Kodak volumes were high, there were postal rates in place that made it economic to send film through the mail. There may have even been special rates for films (I don't know).
Two anecdotes about the high volumes going into and out of the North Vancouver processing lab:
1) every once in a while some brilliant individual would get the idea to send illicit drugs through the mail by putting those drugs into a 35mm cannister in the envelope that Kodak provided for slide film (not a mailer
per se, because Kodachrome was sold as "processing paid" in Canada). They would then write the intended address on the envelope, rather than the address of the Kodak lab. Unfortunately, Canada Post processed such high volumes that they didn't even look at the address - they just put it in with all the rest of the film going to the Kodak lab; and
2) Kodak was mailing so many rolls back to their customers, that Canada Post agreed to the postage amounts being calculated by way of mailing the shipments in bulk, rather than counting each shipment.
And the biggest source of problems with re-uniting people with their films? Stick on mailing labels that didn't stick on.