The printer attached to my computer prints, copies, and scans. It's not like it was expensive. Less than $200. I can email any document that I have without the phone or long distance charges, and the quality of the document is better than what a fax can deliver.
I don't know why fax machines are still in use, to be honest.
My experience with multi-function devices - especially printer/copy/scan/fax combos - is that they don't do any of the functions particularly well, and if one of those functions fail you lose all of them at once. Thus I have a printer that is just a printer, use a camera to "scan", and email to send facsimile images.