Companies switch for simpler scaling and Rust performance. Cognigy.AI switched to Qdrant for 'improved Knowledge AI experience.' Gain: better performance at scale, simpler operations. Trade-off: less mature hybrid search, smaller ecosystem.

Teams switch for fully managed simplicity. Gain: zero ops burden, easier scaling, sub-10ms latency. Trade-off: cloud-only (no self-host), vendor lock-in, higher costs at scale.

Postgres teams switch to stay in existing stack. Gain: free, no new infrastructure, simpler architecture. Trade-off: less sophisticated hybrid search, fewer built-in AI features.

Enterprises switch for massive scale. Gain: 'lightning-fast searches' at billion-vector scale, Apache 2.0 license. Trade-off: complex to operate, steeper learning curve than Weaviate.

Teams switch for mature ecosystem and broad functionality. Gain: battle-tested at scale, rich plugins, full-text + vector. Trade-off: complex operations, license concerns (SSPL).