I'll miss them, though I certainly share in the blame of not buying them enough.
I'm stockpiling so I can still have some every now and then. From what I can tell, the cheapest I've found (excl eBay) is here: https://goodgroceries.com.au/products/allens-fantales-1kg-1?variant=42091381293253
By the way, hello all. First comment here coming from reddit.
Every month or two I make the trek to the local bank to get some $1 coins for the laundry in our apartment complex.
Aside from that, I use Apple Pay for nearly all in-person transactions, PayID for sending money to friends and family, and my credit card online.
I'm approaching 30 and haven't actively carried cash in over a decade.