Reasonable offers accepted. Happy Saturday

Curious... what do you think is a reasonable offer? I've spent way too much time looking at fans lately, apologies for this. But for $19 you can pickup a Noctua fan with a 6 year warranty. I'm gonna go out on a limb and say that it is a superior fan over the stock S3 piece.
Are there specs/stats for the S3 fan somewhere handy?