There is a lot more that goes into it then just driving you to a blind and calling it quits. Who set up the blind? Who is the guy that keeps it baited? Who guts, capes, packs and ships your game? Who provides your lodging, and provides your company? Sure you could figure it all into the natural cost of a guided hunt and not leave a tip...but it's not figured in. This has been discussed already at length in the Big Game forum a number of months back.