I have found some HP calculators in a bookshop (an old stock) I have asked for the price and this is the result:
HP 41CV halfnut: 250 eur.
HP 28S: 200 eur.
HP 27S: 100 eur.
Prices are based on the price they had when they were in production (paid by the bookshop) and must be confirmed because the responsible didn´t know what to do with them . Anyway I don´t think it is possible to get a great discount.
All of them are New in Box, but I think they are too expensive. What do you think?.
Cheers
Jon