It is odd how many people today, speaking a different language, being from an entirely different culture and two thousand years later claim to know more about the life of Jesus, than those who walked with Him, spoke His language,and were from the same culture.
As for the sacrifices the believers went through, if that proves a religion's veracity then we'd all better convert to Scientology
I have to agree that sacrifices do not prove the truth of claims..ie the Branch Davidians. It would be difficult however to find men to die for a cause which they knew was a lie. Then their is Paul who publicly killed Christians who changed his mind claiming he saw the risen Lord. I do not know much about Scientology so I would do well to not comment.