Who's at fault?

Here's the situation, I won an auction here at Audiogon together with another Agon member for a digital cable last September and paid promptly to the dealer who conducted the auction. The winning bid was $143.50, kind of a good buy if you ask me.So I gladly waited for the cable to arrive and two weeks had pass and still no digital cable. I emailed dealer, who had been a great seller for me in the past, anyway the dealer told me that the particular model had discontinued by the manufacturer, but the manufacturer will make couple of cables specially just for the two winners in the last auction. So I said fine I'll wait, a month had pass after that and the Digital cables still has not shown up.
I then emailed dealer again and ask about the status of the cables, they told me that communication with manufacturer was not clear lately and that for me to feel free to contact manufacturer directly. I refused to do that as I felt it was dealers auction and I should only deal with them. Am I right?
Anyway to make a long story short I emailed Agon and they communicated with dealer and I guess ask them to settle the matter with me. At this point I was really furious so I asked for a refund. The dealer then emailed me back apologizing for the incident and said that they will refund my money. They did send me a check with an issue of Stereophile and a battery powered lamp as a gift they said for my troubles. The dealer has been good to me in the past don't get me wrong but this incident made me feel cheated of my supposedly good deal on a good cable.
Well now I just saw that the same cables is being auctioned by the manufacturer again at a starting bid much higher than I won the auction for which makes me think maybe they just did not want to sell me that cable because the price I won it on was too low. Am I right on this assumption? Please let me know? Who's at fault here the dealer for not handling the situation like they should? or the manufacturer who may have delayed the cable's to long so that I will get tired of it and just ask for my money back.
Any comments will be appreciated.

Also the other guy who won the auction with me was also going to ask for his money back the last time I communicated with him.