It's a nice idea, in theory. But who's going to pay for it?

How to say “It's a nice idea, in theory. But who's going to pay for it?” in Japanese

In Japanese

理論上(りろんじょう)はいい考(かんが)えです。でも、その費用(ひよう)は誰(だれ)が払(はら)うんですか。

Rironjō wa ii kangae desu. Demo, sono hiyō wa dare ga harau n desu ka.

It's a nice idea, in theory. But who's going to pay for it? in other languages