Unfortunately the ones used in AI data centers aren’t useful for gaming. So yeah, probably could buy one for ⅓ the price of new, but couldn’t use it for gaming and likely still wouldn’t be able to afford it because of:

NVIDIA H200 (Blackwell architecture) – The latest flagship (late 2023), with upgraded ~141 GB HBM3e and other Hopper improvements. It provides ~50% performance uplift over H100 in many tasks on the same power envelope. Pricing is said to be only modestly above H100. For instance, a 4-GPU H200 SXM board is listed at about $170K (versus $110K for 4×H100) ([2]) ([20]). A single H200 (NVL version) is quoted at around $31,000–32,000 ([21]). NVIDIA’s data center system NVDIMMs for H200 (DGX B200) reflect these prices, though bulk deals may apply.