In addition to employment and work visa issues, when you move to another country you will have to adapt to a completely different culture. You have to be realistic and very determined to endure the stress of the first few years. That's not to say that you won't eventually enjoy your new home, but when the novelty wears off it may not be the dream you expected.
Personally, I just want to be able to visit for a month or two at a time and keep it a refreshing change from my normal life and enjoyable experience. Give me a month each in Japan, Korea and Scotland and the rest of my year at home would a far better way of life.
