I'd love one - I could never get the heat I want, even more so for Chinese cooking. However, since I got a carbon steel wok, my life has changed! ;D
It's nuts the difference it makes. In my standard Tefal number, I struggle to get the oil smoking. With the wok however, the instant I add the oil, it shimmers and separates and smokes almost immediately. I can get the thing smoking so much it fills the entire kitchen.
I suppose a wok is fairly inappropriate for BIR style cooking but I'd love to lay my hands on a carbon steel curry pan!