I was waiting for the non-G-sync version of this monitor that's why I didn't bite on the $499 price but it looks it's not going to be sold in the US. The official Acer page has the MSRP for the G-sync version for$599 so I guess that's the correct price after all.
So confusing but it seems like the one on newegg is in fact the g-sync version.
I think the non-G-Sync model is XB270Hbmjdprz which looks to be available from Amazon Germany right now.
Nothing fits my hand better than a G9x. The Corsair M60/M65 is close though. Not sure why Logitech discontinued it when people still buy a NIB G9x for $100 on eBay.