My comments have nothing to do with whether the deal was fine or not. What I'm commenting on is if the OP was deceived. My research of other 12-core 3.33GHz Mac Pro systems by this seller led me to conclude they are being upfront that the systems were upgraded. I can't speak specifically to the OPs auction but I see no reason to believe that auction was any different.
As for the shipping delay we only have the OPs word that it was delayed (or, if it was, unreasonably). The seller has quite a number of satisfied buyers. I believe only two buyers left negative feedback (one being the OP).
EDIT: After reviewing another auction for this seller I see the following in the listing:
Will ship within 5 business days of receiving cleared payment - opens in a new window or tab. The seller has specified an extended handling time for this item.
The OP stated:
It took about a week for it to finally ship. I received it 2 weeks after ordering.
"About a week" could be five business days. If the Mac Pro in the auction I am viewing were to ship today it would arrive anywhere between January 9, 2015 (eight days from now) and January 16, 2015 (fifteen days from today). It seems the OPs shipment / delivery was inline with the terms of the sellers listing (at least for this listing).
IMO the OP either didn't clearly understand what they were buying (and the terms of the sale) or he is being unreasonable.
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