I know it's not disclosed here, but this seller has more than one of these 8300's for sale. Also he does not disclose that he has an Ebay score of 316 with 100% Positive Feedback.
I purchased one of these Sunday night and just received it today, it was packaged well and he shipped very quickly, and as described. Also it was shipped via USPS, insured (at my request) and he sent me the delivery confirmation as soon as he sent it out. I'll give him a Positive score for this transaction via BB Forums.
Besides all of that, he's a really nice guy to do business with.