Greetings from where the man on the street is doing his shopping! At the local computer show last week the ‘Bangladesh Boys’ had a bevy of new Ryzen 9 5900X 12-core for $280 each with no sales tax if paid with cash. Many lookers and would be grabbers leering across the crowded folding tables. This said $229 for a Ryzen 5600X3D is not exactly a fantastic deal even for a Micro Center special and particularly this late in the cycle and with a new generation of CPU’s only a few months out! It certainly appears that AMD is pushing out CPU product on other lesser known channels than Micro Center. The comments overheard were that AMD prices will further tumble downward and that by this November one may be able to score a 5900X with a corresponding Mobo bundle for less than $300. And that AMD has always been known to be first in significantly slashing prices with all of their products. Of course the simple fact remains that the 'man on the street' usually only purchases several generational ago hardware.
Fantastic deal? Well, I'd say a very good deal, at the very least. Great to Fantastic, maybe. But, I'm looking more at the combo than the CPU on its own.
That said, the budget mobo (A520M) plus 5600X, where I piled on coupons at Micro Center, ran me $245, and the 16GB RAM that Micro Center is offering in the bundle back then would've been about $55 more at least. That puts it at $310 right there.
Getting the 5600X3D, combined with a higher-end MB (more fan headers, more RGB headers, an NVMe 4.0 in addition to the NVMe 3.0 port, better VRMs, etc etc) a year later for $330 seems impressive, especially since it can out-game more expensive systems.
Of course, I stacked some coupons at Micro Center, and likely I could've used at least one of the coupons in question for the current deal as well.
I'm not sure I'd go to the scramble of "hey, in cash, no tax, great deal here" for new and pricey parts. I don't know where you're located or where this convention was, but, that sounds, ah, shall we say, questionable.
Whereas, if I were interested in a 5900X (and, those of us on a budget don't usually go for halo-ish products), that's offered by Micro Center right now for $320 - which could have the $25 new customer or $25 on any purchase of $100 or more (I know at least one of them is still going), to bring it down to $295... from a vendor giving a 30-day price guarantee, and a place to go to if something goes sideways. Not much worse than the $280 you're talking about. I'll even say that gas and tolls would at $10, making it $305.
Of course, if I were looking halo (or halo-ish) CPU, I'd likely go for the 5800X3D instead, for $20 less than the 5900X.
As to the prices tumbling in the future. I'd say that could definitely be plausible. Of course, rumors are just that - rumors. Who knows what the reality of the market will bring us at that point in time?
EDIT: the one advantage of having bought a year ago is that my previous daily driver was given as a gift about 2 months or so ago to my GF's son, so he could game online (fairly light-to-medium, not the latest AAA) with his sister. Glad to know my old Haswell (Xeon, 4c8t) and RX 580 8GB are living on.