Drip irrigation systems are made of plastic and are easy to lay down. Unlike other systems (installed sprinkler systems for instance), drip irrigation systems do not have to be trenched or buried.
Water Conservation
Drip systems go a long way toward conserving water. They deliver water directly to the root zones of plants and prevent evaporation. Gardeners interested in water conservation and waterwise gardening should think about installing drip system.
Drought
Drip irrigation extends water supplies during droughts or extended dry periods. In some areas, drip irrigation systems are exempt from drought-imposed water restrictions.
Water Sources
Drip systems can use just about any water source: cisterns, wells, ponds, tanks, municipal water sources or collected rainwater.
Readily Available
There are many drip irrigation systems available commercially, each essentially providing the same results, but with small variations. Some are very inexpensive, others cost more. Some are very simple and others a little more complex.
Installation
With just a little reading and research, (most of it on this site) a do-it-yourselfer can properly install a drip irrigation system. And most manufacturers carry fairly good installation instructions in their packages.