0100.0x.city is valuable because "0100" often suggests binary code or military time, appealing to tech and defense sectors. Combined with "0x," commonly referencing hexadecimal or blockchain contexts, and "city," which invokes urban tech innovations, it targets technology-driven hubs. This domain could host services related to real-time city data, tech events, or startups, particularly appealing to innovators in blockchain or digital infrastructure within urban settings.