Not sure how I got credit for the quote in your post but it was not me. It was jhaelen.
how addictced are you?
Must have been not paying attention when I removed the rest of the post.
Either way I have 3 core sets, am an addict with the best of you and possibly heading for a 4th set 
Hoping to run a Leadership/Lore or Leadership/Spirit in solo, a Tactics or Tactics/any dual sphere in multiplayer and then keep 4 starter decks for demoing in stores and at conventions 
Carnivean said:
For solo play they could introduce something like the following on each scenario:
Escape from Dol Guldur solo play
Threat Elimination: 3 heroes or less = 50 threat, 4 heroes = 60 threat, plus 10 threat per hero to a maximum of 6 heroes
Deck Size: 3 heroes or less= 50 card minimum, 4 heroes = 60 card minimum plus 10 cards per hero to a maximum of 6 heroes
Staging Draw: 3 heroes or less = 1 card, 4 heroes = 2 cards, 5 heroes = 2 cards, 6 heroes = 3 cards.
Solo Scoring: As per standard scoring plus 15 per hero after the third hero.
Threat increase: 3 heroes or less = 1 threat per turn, 4 heroes or more = 2 threat per turn