There is a worthy market for devices such as this. When it comes to high-end 4090 laptops, you can spend the same amount and not get watercooling, on the Razer Blade 18. The Alienware M18 is also in this market segment, also without the cooling abilities, but keeps the nice 5k asking price.
Use one of those other 4090 laptops, and game on it. Your ears will bleed from the fan noise, and a headset is almost required, unless you like having your neighbors hear your gaming laptop that you have to crank the volume on to hear against the fan noise.
The NEO 17, at load, with the OASIS attached, barely spins up the fans. Other laptops without the aid of watercooling possible, just simply lose when gaming, or under any load. This is something that as a laptop user, I feel is really valuable. You know, since becoming a full-time laptop user, I wouldn't go back to a desktop. It's just not worth it. Do also keep in mind that you'll have to watercool said desktop to provide the same break from fan noise that you get with the NEO 17, and simply put, that's a pain in the you-know-what, but it IS worth paying for. That's a big part of why watercooling exists... it greatly reduces fan noise.