That's the asking price not the sale price
I would guess it sells for half that.
That stove, competently restored, may very well increase in value. Whereas a box stove is like a car, you lose significant value as soon as it's "driven off the lot"
Plus I bet it will easily outperform any box stove of equal fire pot capacity.
So if i ask $600 for a lawn tractor, i am not supposed to expect to get $600 for it ?? That ain't how i do business nor how i buy things. If seller is asking a higher price than i want to pay,i MIGHT tell him that i will only go so high & walk away.
My Crane 404 that i paid $100 for is likely still worth at least that much after heating for 3 seasons. I didn't need to tear it apart to use it either & likely will never need to even after many more yrs of use.
As far as performance... i put coal in,get burnt up coal in ash form in the ash pan,thimble temp is typically 110*- 150*, stove room is typically 75-77*,most of house is 75*. I don't need the glamor of a fancy stove to exist in this life.