A business that relies entirely on proprietary, closed-source infrastructure is at the mercy of its vendors. If that vendor goes bankrupt, gets acquired, or aggressively changes their pricing model, your business operations are held hostage.
Standardizing on open-source infrastructure (like Linux, KVM, and PostgreSQL) ensures you always have options. Open standards mean you can hire from a broader talent pool, migrate between hardware platforms easily, and completely insulate your firm from predatory vendor lock-in. This operational resilience directly translates to higher enterprise valuations during M&A events.