Occasionally you come across a product that makes you throw your hands up in the air, gaze towards the heavens, and announce"why?" I had just such a moment earlier today, when viewing a mouse kit that wants you to not only buy a perfectly decent Razer Viper V2 Pro to complete it, but to rip the sticky skates off the bottom, disassemble it, and harvest its delicate PCB from within.
Honestly, I'm desperate to know what advantages have been gained by removing the shell from a very capable mouse, beyond the satisfaction of taking it apart and cramming it into a frame that looks like the sort of thing your original peripheral might have been packed in for shipping. The product page says that it's now an"ergonomic fingertip mouse" which is both wireless, and with low-input lag.
Alright, alright, there is some precedent for this sort of thing, as tinkerers and kit enthusiasts have long competed to create peripherals like this unbearably cute. In that case, I sort of get it. It's weeny, it's silly, and it's quite an impressive feat of engineering. The sort of peripheral you might create simply for the novelty value, not the ergonomics.