From my experience of talking to people about going to reach the unreached, I often find that some are unwilling to go and spend sometime in these many times hard places is because they feel as if it is a call to lessor joy. John Piper here gives an encouraging word on minimizing our own comforts for maximizing joy.
Minimizing Comforts for Maximizing Joy from Desiring God on Vimeo.
My challenge then for you is would you take one year of your life and spend it in an area with the unreached? It may be one of the most difficult years of your life, but also one of the most rewarding and joyful years.