For everyone worried about having your badge end up in the hands of a collector, here's a suggestion that DZ Headquarters gave my chapter years ago:
Leave a signed note in the place where your badge is kept, stating that it is your wish that your badge be buried with you upon your death or sent back to National Headquarters. Enclose the address of your National HQ in the note.
Even though I'm only 26, I already have a note in my badge box, just in case something should ever happen to me.