more BTU: BTU on a gas stove is ridiculous — they are so lossy that the flame pattern is a bigger deal.

better simmer control: even a lot of expensive gas stoves have fairly bad simmer

repairability: I regrettably own a fancy Thermador stove that is hard to repair — extracting the crappy ignition units requires a special tool that has been discontinued.

If you want excellent temperature control, get a Breville Control Freak. It outperforms everything else (generally by far), it’s offensively expensive at $1500, and it’s also cheap at $1500 if you think of it as the best stove that just happens to have only one burner.

You’ll also discover that 1800W (~6100 BTU/hr) is about right for most purposes with pans up to 12-14" at near 100% efficiency. You do not want 15000 BTU/hr delivered to your pan for any purpose other than boiling water or maybe reducing a big stock if you are stirring actively.