I'm new to Panerai so don't have the perspective that many of you have on this forum. A pre-owned 249 seems fairly expensive to me at this point ($8-9k) especially since the watch originally sold for $5,800 in 2006. It sounds like prices have fluctuated based on the following from a writer named Matt Baily back in 2013:
"... one must keep in mind that the PAM 249 originally retailed for $5,800 USD. It sold out almost immediately, and traded hands for multiples of the original retail price. Values spiked before 2008 and have come back down to more reasonable levels, but you still will not find one for less than a 5 digit price in any condition."