I just checked Ebay and there's about 10 sm giro atmos helemts new 2005/6 for anywhere between $90 and $150, but none in silver. I would recommend a current model and $190 is steep for a manufactured 2 year old helmet. I was fortunate enough to win a 2006 Robobank (orange, blue, & white) atmos helmet for $75 w/pod. I was pretty happy about that but all I was looking for was a 2006 in a small. If you have to have silver, I'd say keep on shopping but if you're flexible and don't mind white or black, then definitely buy for a lot less on Ebay.

Good Luck.