Tatler had a huge sale about 6 months ago. Like 50% off huge. So I bought a few hundred. I haven't used them yet but plan to put them to good use once the fresh produce starts rolling in.

I got them for the same reason as others...to have a more sustainable supply of canning equipment. I will still use one time use lids, while they are cheap and plentiful, and I keep a large supply of those on hand. But the Tatler lids will be my reserve.