The ones on import monster are at about the same price I payed for mine in Japan(25,000 yen), though mine weren't perfect they where definitely better than those, and cost considerably less to ship.
I think you did well with 400 odd for the S2's Socrates. S1's in the same condition for will fetch good moneys. $400+ AUD in Japan not including additional shipping charges etc.
Nice looking garnish, hardest part to come by in good cond. Check the top mounting bolts on these as they are very brittle.
http://page.auctions.yahoo.co.jp/jp/auction/136659379