Keep an eye open for a Human Comparator TKB. Average price in the past year off the top of my head has been about 1000 USD, and while it lacks the new features Random*Source’s TKB offers, it’s also a lot less expensive.
The TKB certainly excels as a sequencer (with some helper modules), but don’t sleep on its potential as an expressive preset manager. A sixteen-fold bank of four preset voltages is nothing to sneeze at!