Quote from DarthTrogo
I don't think it would work very well. Mojang lose a decent amount of money from hosting minecon so having multiple conventions would either be too expensive for mojang/attendees, or they would host one big minecon where there are panels about youtube, hosting servers, setting up servers, mod development, open FAQ with youtubers, meet and greets etc. and all the big youtubers go while the others would have a few panels about youtube, servers, modding, animating and redstone with a few youtubers to cover those. Although, the second option might work because Insomnia 49 was good for all the European fans.
True it would be pretty expensive. Maybe they could alternate the locations. Like 1 year its at their home turf, the next year its at Orlando, FL, then back to the home turf, and repeat. This will allow them to have 1 Minecon per year and still allow people to figure out which year they can go, when to save, etc etc. This will also not break their wallet with setting up the convention.
Also tickets I see are like 150.00 USD and up....I don't know what they are from official vendors like Ticketmaster, but tickets to the con should be like 50.00 max.