Depending on our use airtel prepaid ok. Review on Pre-Paid Card Vs Post-Paid Card

I have been using airtel prepaid for the past three years. the question of having prepaid or postpaid I feel perhaps is more dependent on how much of contacts u have. I have land phone also inspite of mobile, the problem being both of us are working outside, and a child so nobody to pick up the phone, but still sometimes due to inaccessability we prefer a land line too. to be frank while using mobile sometimes we donot know the time limit so to restrict ourself and be conscious of our bill I feel prepaid is best. also the pains of going and paying the bill is yet another task. now that echarge automatically available I prefer using prepaid, though we know unknowingly we are deducted the service charge but still it is easy. there are lots of 1 Re coinbox so doing local calls can be done which will reduce our bill. always limited talking which cannot be restrained by ourself or the opponent who does not realize that our bill is increased by their talk this is the best. one more problem is sms charges is a problem whereas in aircel it is free. for better control, prepaid better