Seriously? Can you show me one other standard stock battery that's cheaper than that?
These look decent, and a few others, I guess most of them are a tad higher but I'm used to getting batteries for my other phones at like $10-$15 shipped, thats why.
BATTERY F BB99100,35H00132-01M,Google Nexus One,1400mAh - eBay (item 280458537779 end time Mar-01-10 02:48:45 PST) $18
1400MAH BATTERY + CHARGER FOR HTC GOOGLE NEXUS ONE 1 N1 - eBay (item 280468850955 end time Mar-23-10 17:09:45 PDT) $15