For gear that's not very old and in excellent condition I reckon 75% of current new price is a good deal for the buyer (and a touch on the skinny side for the seller), but it all depends on whether someone is looking to buy at the time you want to sell. For example, there's a near new 17mm Nagler on offer for 75% including post - that's a great deal for someone looking for that eyepiece. Who knows when it'll sell though - we're very careful with our pennies here at IIS
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