For years, I buy the 0.5 upgrade version when it’s on sale (less than 50$), then I wait to register when Steinberg announces the new version and the beginning of the grace period.
I'm in Canada, so I pay conversion fees in any currency, so that's the best deal for me, including that I used T+S loyalty points to reduce it even more from the lowest price for me. Depends on where you live.
And Time+Space for 17,50 pounds, which is less if you don't pay VAT
https://www.timespace.com/collections/latest-toontrack-deals/products/toontrack-ezx-post-rock