My wife is not a gamer and has an average awareness of technology and pop culture. We have joint finances. I'm not a console gamer, though we have a Switch that my kids play.

I'm going to approach her out of the blue and say "Hey the new Playstation 13 just came out. It's $500. Would it be cool if I bought one on the way home from work tomorrow?"

Her "being cool about it" requires that both A) she seems fine with me spending that much money this way, and B) she isn't thrown by the fact that the Playstation 13 does not exist.

Seeming fine includes being indifferent (~"Sure, whatever you want") or supportive (~"Sounds fun!") If she seems reasonably hesitant (~"Hmmmm, are you sure we should spend that much money?") or outright opposed (~"Do not spend $500 on that") then obviously this resolves to a No.

If she questions the existence of the Playstation 13 or appears to be bouncing off that element much at all, this also resolves to a No.