Compare your prices with the new goods offer before sell or buy.
https://www.discomp.cz/default.asp?cls=stoitems&stifulltext_search=and&fulltext=turris&action=setcur&curid=14#cls=stoitems&stifulltext_search=and&fulltext=turris&action=setcur&curid=14&setstiordercook=sipprice_desc&onstocki=1