Having worked in a company with multiple company jets, and flown in those jets, just the ability to avoid the TSA is worth it, much less the other hassles. As D'Artagnan points out, you can be incredibly productive in the much shorter time you are actually traveling.
On the other hand, the strong correlation between companies that own jets and companies that do not really serve their stockholder's best interests is very discouraging. Somewhere there is a Treasury study on this relationship that convinced me to sell the shares of any company that enters into a lease or ownership relationship for a company plane.