Stopped playing just before or early on during 2.2 (don't remember) and recently returned.

So I read the old official announcements and gathered that:
  • Myth tomes no longer obtainable.
  • Myth items now need Soldiery to buy.
  • Exiting Myth tomes will not be removed.
So...what do I do with the 1098 Myth tomes on me? Is there anything I can do with it? Or is it just going to sit there and wait for 3.0 to disappear into thin air?

I don't mind it disappearing, I'm just wondering, there must be some use to it if it's still stored there.