No. 1: EMC (Storage Software)
As top ROI vendor, EMC offers partners Webinars about the benefits of EMC's storage array replication software -- EMC Symmetrix SRDF and EMC MirrorView/S, and Sybase MirrorActivator. Mirror Activator combines the benefits of database replication with EMC's storage array replication software. EMC has made available: "Storage Management Strategies and Software for Maximizing Business Impact and ROI."
And now, the 5 Vendors with the Worst ROI.