I've never had a problem with hit-japan in terms of the condition of the items or shipping - it's always been very accurate, well packed and prompt. You're right, they're not the cheapest, but not the most expensive either.
Just bought Cyber Knight ($5), Magicoal ($15), Fang of Alnam ($10), Xanadu I ($8) and Sol Moonarge ($10) from him - I paid about 50% - 75% of the asking price on all of them and he accepted. I don't think that's a bad deal by any stretch of the imagination.