with mfp's you get a machine that is going to last and you will not need to buy every year like a printer that has a years warranty and after that it's more economical to buy a new printer rather than repair the old one
also if you doing more than 5% coverage on a page it's more economical to print on a mfp
well with a mfp or multi function product you pay just for the page, all service and parts, and consumables are included, regardless of whether you print 5 , 50 or 100% coverage, so like a mobile phone where when you take out a contract you simply pay for a minute, with say a xerox mfp say like the ones available on you simply pay for the page, who in business can afford to have a credit phone, who then can afford to have a credit printer where the more you print on the page the more you pay?