The Epcot park entrance fee remains the same.
In World Showcase there are small booths that are set up by several countries not represented by the 11 permanent countries located around the lake.
Each of these booths are manned by represented by folk from their particular country and they offer small titbits of food and drink from their domain.
You could eat your way around the World if you sampled food from these outlets although it would cost a darn site more than having a normal sit down meal at a restaurant!
It`s nice to sample some of the food on offer though.

There are also several demonstrations and wine tastings etc. however these items do invariably incur an additional charge.