You're the only who can answer this because it depends on you. But if I were you I wont wait for bitcoin adoption's success in other countries before engaging myself. Many changes can happen that can affect the price thus its better to join the ride while you can afford to buy a portion of bitcoin. Anyway, its your own money thus you better know than anyone else the right decision to make. Have a guts to take the risk because we'll never know what is the future that lies for bitcoin.