Is it easier to administer a network using DHCP or setting an IP address manually? Why?

This Question is always there in the mind of IT professional. Lets try to decode it.

It depend how big a network is. If you have only say about 100 systems in your administrative domain then you can go for static assign. 
But if you have more than 1000 system in your domain then it is highly recommended to go for DHCP, as you cannot remember all 1000s IP at a time and repetition of IP is very likely to happen so, try avoiding it.