Mine was last week. I have a pc engine duo in canada that is having trouble reading the music on super cd, so while i'm in Japan, I decided to ask my local shop if they have a pc engine duo for sale. They do not, but they offer to call another place. i go to the gym meanwhile. When i come back, he informs me that they do not have a pc engine duo, but they have a pc engine duo R if I want. I know that these usually command huge about of money for no real difference, so I was about to pass. Just for the laugh i ask how much they ask for it. He looks at his screen and i can see in his eyes that he is surprised by the high price. He said shyly ; " It's ichi man (100$)".
My heart jumped. I ask calmly if its a complete set. He says that yes it comes with all cables and controllers. I proceed to ask him to call again the other store and order it for me. Meanwhile i walk around the shop and check for more pc engine games. He comes to me again with the phone and he looks sorry. I knew it was too good to be true. He says "I'm sorry, i made a mistake, it isnt complete. It doesnt include the box, but the manual is included" I tell him i dont mind, we finish the order, i sign a paper and go back home. 2 days later, i was the proud owner of a non yellowed pc engine duo R. that thing is soo beautiful!
that was my best score, that and finding castlevania rondo of blood for 55$ in the wild, which is what started my passion for the pc engine.