Default Blue model?

I'm wondering what's the deal with the blue M7? I'm thinking about buying one off of a guy for very cheap (130) (sprint) and I'm wondering if it's rare? or if it's just not popular or what?

Searching for the blue model on google just brings me to best buy's page, I can't find anyone selling one on CL or swappa. Do you guys think I'll get burned? I'm prepared to check the IMEI and such status with swappa but.. If i'm looking to resell this.. any ideas?
Nexus 5 (Stock) + Z2 Dalvik/Bionic patch: (http://goo.gl/3vxSqq)

iPhone 3gs - Samsung Captivate - Samsung GS2 Skyrocket - Motorola Atrix - HTC One X - Nexus 4