Eminem only puts out the stuff he thinks lives up to his name, that's why I think everyone hoping to hear all his 'unreleased' SSLP-Eminem era songs or Relapse 2 have nothing to look forward to.
Sometimes a song he thinks is good but doesn't come out on an album will see the light of day anyways, whether through bonus tracks, freestyles (I have a feeling 'Insult to Injury' came out as the 2010 Westwood verses), or a mixtape (Invasion).
Basically I think that the best of Em is stuff that we already have heard, and there's no special gems locked up in a vault somewhere that we can only hear after he dies. Since Recovery came out and Relapse 2 has been scrapped, people have been wanting to hear R2, but I think we already have in the form of Refill. All the other songs on R2 probably really suck. The Stat Quo/Eminem songs that leaked without Em's permission suck so much ass that it's proof that even though Eminem makes great music, not everything he records is of that great quality.











