I actually want to do that. I do purchase refills whenever possible, and I hope such mechanisms are more accessible.
It's ridiculous how many things are thought of as "disposable" today.
For instance, any hand wash comes with a pretty good and durable dispenser. But rarely do I see refills being sold, except when you specifically search for it online.
And pens, especially ball pens. The outfit is perfectly reusable, while rarely do I see the refill being sold. Instead, it's just 20 ball pens sold in a giant bundle. It's like they want to encourage you to throw away everything.