Fusion 360 is requiring you to specify if you are a startup or a hobbyist. My interpretation is that you have to start paying if you are a hobbyist.
Anyone else read it differently?
Following the “Update your subscription now” button from F360 at top of screen:
"Lock in your price now and get Fusion 360 for only $310 USD , a savings of $185 USD per year, for as long as you renew! Act now, as this offer ends October 31, 2019 .
**Please note this special offer is for existing hobbyist/startup subscribers only, valid in the countries/regions listed below. This offer cannot be used to extend or replace an existing commercial subscription contract.*"