Much cheaper, shorter wait time generally, and the results are still great. For people in the US who don't have insurance and have no hope of getting insurance, it is a good way to get what you need at a lower price than what you'd pay here.
As an example, two of the top surgeons performing phalloplasty in the United States have a cash price of $125,000 for stage one. You can have the same exact procedure done in Thailand for roughly $32,000 excluding travel expenses. Serbia is another place a lot of FTMs consider, the price is similar to Thailand.