The dev kit has no purchase limit. Same is true for the dev platform workstation 32, 64, 80, 128 core (and a 96 faster cores option if you ask nicely).
For those keeping score the Ampere Altra 128 core 3GHz Supermicro telco edge server being used in 5G base stations benchmarks equal to 100 RPi4 and 22% more energy efficient.