PS4-upgraders: how much did the upgrade to PS4 Pro cost you?

[Burning Typhoon]

OdinHades said:
399 €. I kept my old launch PS4 for the collection. I will also get a Slim, but I'll wait until it's really cheap. I want ALL the PlayStations! xP

I have them all... Kinda... not interested in getting a slim.  or a slim PS3 for that matter.