- No investment
- No waiting on engineer planning
- No structural or building changes
- Temporary need ( emergency building,project personnel in an office, season peak, replacement for broken down system, moving office soon)
- Uncertain need (salesvolume, reorganisation, test)
- Time to think about the permanent solution
- Better negotiation position for permanent solution
- Variable cost, quick to scale down
- Predictable prices; easy cost-control and budgetting
- Always the latest equipment
- Easily adapted (more capacity, different type)
- Easy: placed, operating, full-service
