Okay, let me try this another way, okay?
A fur coat looks good and keeps me warm in cold weather. However you cannot have a fur coat without hundreds of small animals being killed.
Coming back... I'd like to think I'm able to complete my transition without the expense of human misery, suffering or death.
Additionally Iran is not Thailand. Sure they may do sex reassignment surgery quickly and at affordable rates, but think of the risks involved. Think about the risks you take when you try to enter Iran having a Western passport. That is, if they allow you to enter.
Iran is not a particularly safe place to travel to.
Therefore I repeat - think long and hard before promoting Teheran as a sex reassignment surgery capital.