Can we really only be wowed by something once?

There’s something I keep thinking about lately. It’s this idea that we only have so much space in our minds for formative gaming experiences and it’s diminishing returns forever after.
I was talking to a guy in a pub about it, who overheard a conversation I was having with someone else and leaped in, delighted to talk to someone, anyone, about games. It was quite endearing. And it was while talking about older games and remakes he said: I don’t think anything will ever be as good as the original Deus Ex.