Concorde was a great aircraft and an impressive engineering success. It offered a lot but was beset with many problems from conception throughout its lifecycle. High operating costs, supersonic safety perceptions, and noise pollution restriction hampered its success. Ultimately, it was retired, as were supersonic passenger flights until very recently. Its high fuel use was undoubtedly a factor in its eventual shelving.
This is a companion discussion topic for the original entry at https://simpleflying.com/concorde-fuel-consumption/