Ugh, at the risk of sounding like an AMD loyalist, the 5800X3D is a one-trick pony not entirely because of marketing design, but more so because of what V-cache does, and more importantly, what it does not: people on this forum have asked why doesn't AMD just slap V-cache onto their two CCD offerings (i.e. 5900X and 5950X) to make the ultimate CPU that wins at both gaming and multi-threaded apps, but the answer has already been said; V-cache helps in gaming and not much else (at least, according to AMD - we'll see how true this statement is when people get review samples). Therefore, even if AMD put V-cache onto both CCDs, that 2nd stack of V-cache would likely be a waste. There are also diminishing returns on core counts above 8 for gaming, so it makes sense to put V-cache into a product with a single 8-core CCD. Calling the 5800X3D as a "one trick pony" as if it is a bad thing feels disingenuous if it actually accomplishes what it was intended to do, which is to offer >12900K gaming performance at the rough price of a 12700K. Additionally, the total platform cost is likely cheaper too since you don't need a new mobo or DDR5 if you're upgrading from an older Ryzen processor.
Yes, the Intel offerings have better multi-threaded scores than the 5800X3D, but AMD already has SKUs that suit the consumer who needs that kind of capability. If you're looking for a product that wins outright in both gaming and multi-threaded applications, then I will concede that AMD doesn't currently have a product that can do both, but again, AMD isn't marking up the 5800X3D as if it were that product that does both. Technically speaking, Intel offers something that potentially takes the gaming crown and maybe ties the 5950X for the multi-threaded crown in the form of the 12900KS, but it's at a much higher price ($700-800) than both the 5800X3D ($449) and 5950X ($649). So yeah, while $449 is a little pricier than I personally would have liked, especially since the discounted 5800X price means the V-cache premium is a full $100, I wouldn't necessarily say that it is overly pricey for what it is intended to accomplish.