I have a b&w Brother multi-function (with wireless and duplex) that I use, on average, 30 pages per month--and that's being generous. I use the copier and color scanner options much more often. Replacement toner cartridges are about $15. I also have a very simple wireless HP color laser printer that I use even less; I have been on the same starter toner cartridges for almost two years now.

In short, given how little I print/copy, there's no way I will go back to inkjet printers.