Legatus Hedlius has bravely shown his mountain of unpainted metal miniatures, and I felt that, in the interest of disclosure, I should respond by showing (most) of my own. The below are my unpainted metal miniatures storage areas.
Above is the core of the lead mountain; Foundry boxes, full of Foundry miniatures (mostly Copplestone and Saleh), on top of a bookcase. I once suffered an avalanche, when a box at the bottom gave way under the weight; the aftermath wasn't pretty. Perhaps 2000 28mm metal miniatures.
Below is the one of the foothills, on top of another bookcase, this time including quite a few Perrys, some lovely Foundry Saleh Persians, and a generous force of Aventines. Perhaps 800 unpainted miniatures.
I almost forgot this next heap, on the right- here are more Aventines, A&A miniatures MIR Romans, and others, including some Native Americans (never going to get painted, those!). Also in this pile are quite a few painted but un-based miniatures (oh the horror!). At least 500 unpainted miniatures.
Finally there are the miniatures stored in the loft; I reckon that there are at least 1000 up there, that I can't fit in downstairs. These include fantasy figures, a couple hundred more Foundry Romans, Perry metal Napoleonics and such forth.
In total I estimate that I have 4300+ unpainted 28mm metals (and perhaps 1000 unpainted Perry and Victrix plastics). My unpainted miniatures actually outnumber my painted!
Oh the shame...