It's a good time to buy! http://www.businessinsider.com/now-is-the-time-to-buy-private-jets-for-cheap-2012-7
the list of not owning any longer is long , I R S scrutiny tax advantages public out cry about every thing a ceo does not looking at long term productive benifits and the list goes on i'ts also very easy to call your favorite charter co and they can send a plane that suits the mission rather that owning several planes just my view travler