We (company) do the same. Though in our case the setup cost was 80 Euros (I think), less than a year ago. As the GPU proved not really suitable for any serious server workloads (it's a workstation class card), we'll soon be ditching that machine anyways (now for sure). Maybe our other inventory at Hetzner too. Not even because of the price increases themselves, but rather because the way in which they've communicated those. Personally, I've been a loyal customer and avid advocate for Hetzner, for well over a decade. They sure knew how to nuke that in record time. They can spin their story any way they like, but I'd say their board better consider sending most of their management packing, without bonuses or severance pay.

> I rent their 20GB VRAM instance GEX44, for which they now ask a 500 euro one-time setup fee

Along with the increase in monthly prices they've dropped setup fees back to more approachable levels, though not as low as they were a year ago. For the GEX44 it was €79 a year ago, now €114. Monthly price was €184 a year ago, now €234.