Your Droid may not pass the ESN test if Verizon has it listed as Carrier Financed or some similar description. Being on Edge, you could sell it, but buyer might not could activate it unless it was paid off. Unless someone else can say differently, your safest bet is to pay off that Droid after 6 months or whenever you can pay it off in full. Then sell it if you can and take that money to buy a new phone or go back to contract for a subsidized-priced phone. Being on contract is easier for me because I can buy a good phone at a good price then sell it later to buy something else to use on the line. With Edge, things are a bit different in that the phone really isn't yours until it's paid off.
Messages you might see are like this:
This device is being financed and has an outstanding balance that must be paid or it may not be able to be used
other sites might not list it as the same and list it as clear. There is definitely a risk in trying to sell this phone based upon conflicting IMEI/ESN checking sites.
but you're still in a two year commitment 
