Sold one on here this time last year, 100. The buyer said that was too high and only wanted to pay 60, did nothing and after 3 weeks when he made various offers and went on about postage he begrunglingly sent the 100.
Looks it easy, if you don't want to pay a certain figure, then don't.
If you're selling and your price is to high, what ever that means in the strange world of NS, then it will be harder to sell or not at all