Yes, and I use them too, as many are just so beautiful. I often buy clothes and swap the buttons over, which makes them look more expensive and very different. I had a big clearout and got rid of all the brown ones, finding that they made up almost 50% of the 'stash'!
Some of them are still on the cards, 6d a strip!
I went to stay with MiL when I was ill a few years ago, I spent the whole time sorting out the buttons in her conservatory, I had been meaning to do it for years. They are all now neatly threaded together in matching sets. I have a separate tin for glass buttons, as they were getting scratched, and another for brass ones.