turbotax.intuit.com/tax-tips/self-employment-taxes/top-tax-deductions-for-photographers/L8wdY9kyo
The price in europe is said to be 4600 EUR, this translate to 3800 USD ... so all people concerned about 5k, should just wait and be happy.
Of course it will perform very similarly to the Z9 but the difference will be visible for who actually never cared for the z8 but wanted a z9 (there are people who bought the z9 as a stopgap to a z8, whatever that means).