Metallica and Iron Maiden are amazing games. Sadly, I don’t care for the music on either so I won’t own them. That doesn’t mean I won’t play them occasionally. I’m glad they are out there because legions of Pinball fans are enjoying them. Definitely one of Stern’s best!
The last run thing is probably about licensing(uninformed guess). I’m sure they could renew if the cost and demand were in alignment.