Surly Cross check $1,200 / 2,500 miles = $.48
Trek 1500 $1,200 / 2,900 miles = $.41
Custom Fixed Gear $1,400 (yea, I'm insane) / 270 miles = $5.19

I'm not sure what the purpose of this is. All three bikes should cost around $.08 per mile assuming I put dozens of thousands of miles on them.