Srila Guru Maharaj: Devotees are always headed to Krsna. But if they have material desires Krsna will fulfill those desires first. So they may go to the heavenly planets, the higher planets where they can enjoy for tens of thousands of years. Then again they get born back on this earth for another chance. The problem is right now, we are in the beginning of a golden spiritual opportunity, where if we chant Hare Krsna we can get back to Godhead, very easily. But this only lasts for ten thousand years. So if we get born in a celestial planet and live 15000 years, we will loose this opportunity. 

HH Jayapataka Swami Srila Guru Maharaj