A problem that might arise with the Prisoner exchange for Gilad Shalit?

Seeing it that way I don't see the prisoner exchange to be at all a good idea, we know the costs of releasing the "Palestinian" prisoners...i.e endangering the freedom of more Israeli soldiers like Galid by making Hamas think capturing them and then getting their terrorists back as something to do more often and not to sound horrid, but it isn't worth it, it'd be great to have Gilad Shalit home but I hope it will be done some other way.