Have a 2014 fully loaded Volt with 21K miles. Lease is coming due in October. Asked USB if they would sell to me at less than the residual (about $24K). They said $19 including tax, but I could make an offer. Market price is about $16-$17K so I offered $15K. They said no and informed me that the original offer of $19K has increased to $21K due to recent demand. WTF?