Funny dialog

dad: (while joining us, who're watching the Vienna New Year's concert on TV) Nice flowers?
mom: No. It's a peasant's fair.
dad: That can be nice too, no? A nice peasant's fair?

...

Hmm. This might require a bit of explanation.

My mother has been teaching floral design for almost 20 years. She's also managed the flower decorations in the local church for ages. This obviously isn't because she knows nothing about flowers or floral decoration; she obviously does and is, in fact, quite passionate about it.

A result of this is that she can be quite upset when you went to church on christmas eve after she's done quite some work arranging the flowers, and you didn't even notice them (because they are, after all, things meant to be decorations in the background—and you gave your attention to the mass itself). Or that when there's something going on on TV or in real life involving a concert, the church, or something else, she'll first look at the flowers, and only then at whatever else is going on.

As I do, dad also knows this. So his question was really after her expert opinion on whether the flowers were nice. In that light, the final remark is rather... silly.