Super Smash Con

Con is easy to get into and profits are decent if you're local. Not recommend if you're flying in.
Con staff does not vet/check their artist so A LOT of tracers get in. Table costs are pretty high.

This con is part Super Smash tournament and part convention- about half the attendees are only there to play and watch tournament matches, but they other half are interested in shopping.
Table costs are high for the size of the event, but you get a lot of space and the show was, for all intents and purposes, 4 days long (thursday didn't have many events but people could register and shop, so there was traffic)
Bring ear plugs because the tournament matches can get very loud.
Probably not worth it for out-of-town artists, but local vendors who have a lot of Smash related products could find this show profitable.