I didn't use a different solution previously.

While we are still working with BMC products, we are going to switch now to ServiceNow.

We have BMC Helix, but we're looking to replace it with a fresh service.

I don't know if my company used another tool before BMC Helix Discovery.

Customers decide to invest in a solution because a number of different reasons:

1. They want to support the work they have already been doing in their operations or service management by having an automated tool that on a regularly scheduled basis goes out and says "What's in the data center? How's it configured?"
2. Sometimes, they use it for security configuration management, making sure that all the patch levels are on the right thing. 

It just depends on the maturity of the IT service management and the operations management of where they start to see value in knowing what and how it's configured inside their environment.