It's gimmicky as you can get, and it has weak air flow, but check this thing out! LEDs attached to the blades display the temperature, the same as those alarm clocks in Sharper Image that swing to and fro.
So does it expel air in the direction the LEDs are pointing or the other way around? Can you get reverse models? Or does it read both ways? I want one for a rear fan, I want the LEDs to point inward to be readable from the window, and I want it to be an exhaust fan (not that it'll make much difference either way).
Ide take one if you could display other things than the temp. When the hell am I ever going to need that? Now if it displayed the time it would be useful! Unless the temp probe is not inside the fan itself.