enterprise_build_vs_buy: The $250k AI Upkeep Tax
> The enterprise build-vs-buy decision is no longer about initial sticker price—it is about the compounding, long-term cost of ownership. While rapid prototyping makes custom tools appear cheap, they carry steep financial and operational risks. The Hidden Cost of Building: A homegrown tool averages $375,000 in upfront engineering payroll before it even works, plus a permanent $125k–$250k annual maintenance bill. The Risk of Buying: Vendor pricing is highly volatile, with over 76% of SaaS buyers facing unexpected costs and rapid price shifts after signing. The Strategic Playbook: Evaluate both paths in total engineer-years, restrict internal builds strictly to core strategic advantages, and mandate a reversibility test before committing.