Prices can vary greatly based on features needed, support and customization requests. Knowing what you're after helps vendors give you the most fair price.
Network Security
Data Security
Cloud Security
Web Security
Email Security
Gateway Security
Server Security
Endpoint Detection and Response (EDR)
Encryption
Filtering
IP Black/White List
Attack Surface Monitoring
Threat Hunting
Threat Blocking
Threat Intelligence
Incident Triage
Incident Response & Remediation
Penetration Testing
Security Awareness Training
Cloud Access Security Broker (CASB)
Security Information and Event Management (SIEM)
Security Orchestration and Automation Response (SOAR)