Yes, and Australia wanted them built in Australia, which means investing hundreds of millions or even billions to build up the shipyards to build submarines.
The non-weapons grade uranium requiring refueling every decade, which would require a nuclear industry that Australia doesn't have, was also a major factor in going with American and British subs that require refueling after 33 years, but are expected to have a service life of 33 years.
And remember that The Netherlands has chosen the same design, so it won't be an orphan fleet, and we won't be shouldering the full R&D costs.