aussi cher que
This watch is twice as expensive as that one.
Cette montre coûte deux fois plus cher que celle-ci.
And it's not as expensive as you'd think.
Et ce n’est pas aussi cher qu’on pourrait le croire.
— Psycho (1960)
It wasn't as expensive as I expected.
Ce n’était pas aussi cher que je m’y attendais.
It's twice as expensive as the department store in Tokyo.
C’est deux fois plus cher que le grand magasin de Tokyo.
— Assassination (2015)
Nothing is as expensive as what one gets for free.
Rien n’est aussi cher que ce qu’on obtient gratuitement.