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Value comparison matrix: | Factor | WordPress-Native | GTM Server-Side | |--------|-----------------|-----------------| | 5-year cost | $5K-16K | $70K-145K | | Developer required | No | Yes | | Setup time | 2-4 hours | 20-40+ hours | | API change handling | Included | Developer hours | | Platform integrations | Pre-built | Custom development | | BigQuery | Included | Separate setup | | Support | Included | Developer on call | Best value for most WordPress stores: WordPress-native plugin that handles everything at predictable monthly cost. When...