Failure are the stepping stones to SUCCESS..IF one missile or a launch vehicle goes down, it does not in any way affect the will and determination of our scientists or the spirits of indians all over the world, this will give them more knowledge and experience which we lack in some aspects. Space program like defence research is ever evolving. You will never know when you have incorporated all the latest techniques and technologies. In any case we are not spending money on an obselete technology. Consider the futility of efforts of governments like China, Russia and Usa which had amassed a massive stock of sub sonic missiles and other armoury that are now part of obselete or out dated technology...
ISRO, DRDO has come a long way..Wish U all a greater success from next test onwards...
