Uhh in RPG's generally you normally get better weapons, aand better weapons, and leveling up which in tern gives you better abilities. Like generally speaking you get more choices in all those departments than most action or FPS games, unless , its an action game or FPS game with RPG elements.
For example Dragon Age or FFXIII, you decide what Class/Paradigm's and coniguration to use. You get to upgrade, or replace armour weapons. Acceceries to modify certain abilities, etc.
And in examples like Dragon Age or Deus Ex, the dialogue is part of the gameplay because you choose (although for the most part the outcome remains the same) what the character says.
Like obviously if theres gameplay elements in RPG's you don't like. you won't like rpgs, because it's basically how I am with most FPS, I don't like the first person shooting element that much. So thus, I don't play that many FPS. Although I do like a few.