Garmin 3210 resale value

[FishPimp]

gents,
what would the resale value be for a garmin 3210 unit with gps antenna and east cost chart?
give or take.
I may have one that I will want to sell, as I just purchased a new Simrad NSE 12" with 6kw array radar.

 

[miky2884]

When you come up with a price let me know im in the market for a plotter