Useful certifications for SOC people

According to me, the most important certifications useful for a SOC analysts are the vendor specific.
But of course there are other certifications that could be useful in a SOC environment. This is a short list (prices, when available, included).

Technical certifications

This first group of certifications is more useful for analysts and technical people.

CEH (Certified Ethical Hacker). Course + Exam: 2895$.
CGIH (Certified GIAC Incident Handler). Course and certifications: Corso + Esame 3500$
OSCP (Offensive Security Certified Professional). Course + exam 4000$
ISECOM OPST (Open Source Security tester). I could not find any info regarding the price.
ISECOM OPSA (Open Source Security Analyst). I could not find any info regarding the price.

Less-technical (but still useful!) certifications

This second group of certifications is more useful for analyst coordinators or SOC managers.

CISM (Certified Information Security Manager) - Exam cost 500€. Course cost ~800€ (in Italy).
CISSP (Certified Information Systems Security Professional) - Exam cost: ~500€.
ISO27001 Lead Auditor Exam + course cost  ~1800€.
PMP (Project Manager Professional) Exam cost 340€ for PMI members (129$ needed to be PMI member) or 465€ for not PMI members. Course cost: 3K€.
ITIL v3 foundations. Exam cost: ~150€
CISA (Certified Information System Auditor) Exam Cost 500€. Course cost ~800€.