I mean objectively speaking it's a waste of money.
But so are most luxury items, so there's not really a problem with that if you can afford it and get some fun out of it. Books as decorations are definitely a thing too, so you could even think of it like that.
As a fellow Dutch speaker though, I would recommend reading some in English, does wonders for making you feel more comfortable in the language and I personally feel that untranslated books tend to be better, to read in the original language whenever possible.
I mean objectively speaking it's a waste of money.
But so are most luxury items, so there's not really a problem with that if you can afford it and get some fun out of it. Books as decorations are definitely a thing too, so you could even think of it like that.
As a fellow Dutch speaker though, I would recommend reading some in English, does wonders for making you feel more comfortable in the language and I personally feel that untranslated books tend to be better, to read in the original language whenever possible.