It's reasonable if you want the best. It's called context.
It’s a status symbol/financial flex in the same way their new ROG Harpe Ace Extreme is or Viper Mini Signature from Razer was. Or, hell, for those less knowledgeable about peripherals - the Asus 4090 Matrix which was what, twice the price of a regular 4090? It isn’t meant to make sense. Anyone with a brain realizes that you can get the same experience or 95% there at half the price or less. It exists for the sake of itself, that’s all. I don’t think we will see the Azoth on many recommendation lists for keyboards and any high-spending enthusiasts would definitely rather pour money like this into building their own. But it still will have a customer base.
IMO the lack of Hall Effect switches immediately disqualify it from being the best. Hall effect are just a massive upgrade for every use case thanks to their adjustable actuation point and the features they enable like Rapid trigger, rappy snappy, and analog input.
I don't think it's similar to the Viper Mini signature. The signature sold out because it had excellent fundamentals and simply reduced the weight (which is a big plus for mice). This keyboard improves on the typing feel and sound as compared to other mass produced keyboards but it has worse fundamentals as compared to $175 Hall Effect keyboards (or the slightly more expensive wireless versions). That's a big no-no, especially given how long HE switches have been out for and how popular they have been. Them making this keyboard 8,000 Hz is essentially pointless given the latency reduction for 8,000 Hz in minute compared to the latency reduction of something like Rapid trigger. I really don't see how this product is for, the typing experience is certainly nice but the gamer aesthetic belies the fact that gaming is this keyboard's weakest point compared to vastly cheaper competition. It would have made more sense to change this KB's aesthetic to appeal to keyboard enthusiasts than gamers if they don't have hall effect switches.
It's about what a top end custom keyboard costs to build, so considering this is essentially the best prebuilt you can find, the price is reasonable. Halo product that's best in slot, halo price. To a lot of people the time saved from not ordering each part then assembling, lubing, modding etc. is worth much more than that, but they still want a top end part. Mine for example was around £550, although to be fair £120 of that is just on a fancy space bar from Jellykey.
Shame about Armoury Crate though.
To many folks spending $500 on a keyboard, most the fun is picking all the parts and assembling them.
Not sure where you've been the past year, but you can get quality Full-Aluminum pre-built keyboards for under $200. Wobkey Rainy 75 Pro $170(with shipping) & Epomaker Tide 65/75 $120-140(with shipping) are the some of the more recent entries. Under $300 the list is practically endless these days. Keychron for example, has their entire Q Max series(13 keyboards) at under $250 with shipping, under $230 barebones, and those "barebones" come with gaskets and padding, all that's missing are they switches & keycaps.
This keyboard really isn't any more impressive than the keyboards mentioned above, other than it being $250 more expensive.
Yeah the prices of well tuned keyboards with full metal cases, dampening, gasket mounts, pre-lubed, and tape modded out of the box have come way down in cost. That said I believe the setup used in this ASUS keyboard is a tad better than those. Not worth the $300 extra though IMO.