Just make sure you get a pretty good discount vs. a brand new bat with a full warranty. You should be able to find brand new 2014 Xeno's online for @ $240, so I would not pay more than $200 for a warranty replacement bat.
I would never pay more than half of retail for a NR bat. If its a 299.99 bat...150 is about the range you wanna be at because you can get a full return for 220. We all know prices are cheaper on the net and you cant figure half of that. No way you get a NR new Xeno for 110-120. If its a 349.99 bat, then 175 is about the range I would wanna be at. This goes up a couple dollars if the bat has JUST been introduced to the public because NR bats wont be too plentiful right away.