Apparently, a seller on eBay thinks you would. The lens in question is a very rare Nikon lens, the Reflex-Nikkor 2000mm f11. It’s the longest lens Nikon ever made in terms of focal length, and also the biggest in terms of diameter. It’s also one of the rarest, with reportedly only some 300 copies ever built, by hand. The designation ‘Reflex’ gives away that the lens uses reflex mirrors in order to achieve its high degree of magnification while at the same time being relatively ‘compact’. This also accounts for the fact that the aperture is limited to f11, so no stopping down to increase sharpness.
The copy currently for sale on eBay looks pretty beat up, and is clearly designated as ‘for parts or not working’. So when you decide to put your savings into it, don’t expect it to be working right out of the box. We have no idea whether it can be repaired, or whether it’s best used to source repair parts for other lenses of this type. Either way, $25k for a beat up lens sounds like a steal to us. The stealing-your-hard-earned-cash kind of steal, that is.