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
Gateway Security
Server Security
Encryption
Filtering
Attack Surface Monitoring
Threat Hunting
Threat Intelligence
Incident Triage
Incident Response & Remediation
Security Information and Event Management (SIEM)
Security Orchestration and Automation Response (SOAR)