Exactly. Nuclear weapons cost a lot of money even if they’re just sitting around. And they have to be replaced frequently.
The Russians are still without their nuclear weapons factory at Mayak after a disaster in 2017.
https://www.businessinsider.com/russia-nuclear-accident-mayak-facility-new-evidence-2020-6?op=1
“And they have to be replaced frequently.”
They require service, not replacement.