Target (the stores) has been a really interesting force for encouraging board game designers to adapt their games to entry level. TtR: First Journey, Catan Junior, Evolution's base game rebranded and cleaned up to be an entry level game leaving Evolution: Climate the new "base game" for more experienced groups, Captain Sonar Junior. So far it seems that most designers that have accepted Target's challenge have built great adaptations that don't water down their main concepts too much and are great starting points to the deeper games.