I just bought one off Swappa, absolutely perfect condition. Came with glass screen protector installed. He included a second screen protector, a second battery with charger, and a bunch of cases. $275.
I bought this to replace my boot looped year old V10 that I also bought used. Even taken together, I haven't spent as much on two of them as I would have spent on a brand new V10 a year ago.
I thought about buying a V20 brand new, and even had my credit card out at the T-Mobile store--then they pulled their "$20 mandatory fee for walking in the door and buying something from us" crap, so I turned around and walked out.
I'm going to send my boot looped unit back to LG to see if they can fix it.