Anthraxus
Explorer
Cons still have the wholesale exclusivity of Epics and timed exclusivity of Expeditions. They also have the upside of having more resources to provide a more memorable experience. Plus all of the non-D&D things that take place at a con are incentive to attend.
It's only the really big Cons that get the Epics, though, and the premiere Mods are only for one convention in a fairly large area. I know this because I am working on running a small, Expeditions-only con in december, and I'm only getting the normal mods that are available to stores just like everyone else. I'm only getting things(Fei-Chen) that aren't available in stores because I am working with an RC to get them to drive an hour+ to the convention.