One dies...

... another one takes its place.
I doubt if even Alice's magnificent memory couldn't have told me how long we've had any particular bag, I only know it's measurable in years. 
She must have fancied at least one of them; maybe she thought "the end" was nearer for one of them than it actually was and bought a replacement, since I found both in a drawer bottom and neither of us rated the much abused term "Limited Edition. .
However, I really can't see me using one of them ... Guess which?