Prices for Winchester 1873 are all over the map depending on caliber, barrel length and form, condition (is it 90, 95 or 98, makes a huge difference) and originality. Do you have the factory letter confirming your gun is truly original? Some pictures would help to narrow it down from 2k - 8k.
I used to love being able to hit hard at 1000 yards. As I get older I find hitting a mini ram at 200 yards with the 22 oddly more satisfying.