how much is the tree saddle?
As Venator said, nobody knows what the status of Trophy Line is right now so there are no new tree saddles available. If you can find one used you can probably expect to pay somewhere around $250 for one plus you will need a way to climb the tree and a base for your feet.
Check out this thread on ArcheryTalk for all the information you could ever want on the Tree Saddle:
http://www.archerytalk.com/vb/showthread.php?t=1024581
