To an extent, curiosity following a discussion over MSN with another member here.
We were discussing the cost of laser toner, which although usually has a higher initial outlay in terms of cost (e.g. £48 for the cyan, magenta and yellow, and £53 for the black for my HP) has a better page yield than a compareable inkjet model of the same manufacturer (again for mine, 1,400 pages for the CMY and 2,200 pages for the black). [Amounts using the standard 5% coverage ISO measurement.]
So, what is the type of your primary home/home-office printer, i.e one that you or someone in your immediate family where you live have purchased for use in your residence?
The one you use at work/college etc isn't really relevant, as in most cases the selection of the model and the cost of purchasing it and consumables for it won't be anything concerning you.
(I am also curious if there's anybody who is still using legacy/obsolete stuff like dot matrix machines!)