Tattler has a 10% off deal right now when you order from their site. The discount code MOTHER. I've been waiting since January for these things to go on sale and I've finally got them ordered. Hope it helps you too.
PS. Not affiliated with Tattler in any way. To my knowledge, they are the only manufacturer of reusable canning lids. Should SHTF or worse, non-disposable canning methods will be very important.