Building an application significantly faster translates into significant savings in labor costs.
One TenFold customer replaced a newly written, J2EE application in two months after complaints from end-users that the J2EE application was too slow and lacking in functionality. After using TenFold, they reported to their management that building and deploying into production the fully working, extended functionality, fast-performing, TenFold-powered replacement application took 94% fewer person hours than time logged against the rejected multi-year, J2EE application.
It stands to reason that if you can develop an application significantly faster, you'll save lots of development-related labor costs. But, opportunity costs can be even more valuable. If you have a new application in production after 6 months instead of waiting 5 years, business users have 4.5 years of useful production with its implied cost savings (presuming the new application lowers costs) or revenue increases.
Consider the implications. From our experience, a project that would otherwise take a year could be done in a month or so; a 5-year (60 month) project could be done in 6 months. Savings: as much as 90%!