icy was right. you're being an idiot.
it's obviously not going to be 80 or 90 b/c full retail is 70-80. rolllin is a cool guy, but the fact that he touched it isn't magical.
seriously, how hard is it to come up with a reasonable offer? you go onto froogle, find out how much it's selling for online. find like the cheapest listed price with that color and size in stock. go a little bit down from there since it's used.
since you seem to have a hard time figuring things out, here http://www.google.com/products?q=boeri+roller+helmet&oe=utf-8&scoring=p