Yeah, true, but .. I've been using that as a justification for keeping them the last who-knows-how-many-years.
Thing is, even with a lot of plants, I won't use up 3 Glad bags of them. It's a little like draining a lake using an eyedropper ... while it's raining. The stupid things self-replicate, I swear. Well .. it's just that I'll use up maybe 20 peanuts repotting a plant, and then get another 2000 when I mail-order the next thing.
I just hate throwing out styrofoam but what are we supposed to do, ..... it's too much.