Are TPC Benchmarks A Worthwhile Measure?

KhaosSpawn asks: "Microsoft is back at the top of the TPC-C performance results and has all ten spots in the top ten by price category. But how many of you work for companies that own a ProLiant 8500-700-192P machine? Are there any results for 2 and 4 way machines? Are there any statistics which include Linux installations? Does this TPC figure mean anything in terms of real world deployment or is this just another number for the Microsoft Marketing Machine?"