Sign Buyers Guide: Developer Edition Good or Bad?

I am in the market for a second HTC One 64gb. I'm likely purchasing off ebay.

Is there any pros or cons to buying the Developer Edition? I plan on rooting and installing CFW so the native android doesn't matter.
I've read somewhere you can get free 40gb of google storage but not if its tampered or dev edition.

Any other tips for buyers?

Treo 650 - Dead
Blackjack 2 - Retired
Blackberry Pearl - Sold for G1
G1 - Backup
Iphone 3g - Sold for Nexus one
Nexus One - Best phone ive ever had.