For me, all depends how you structure your story.
Games like Being a DIK, Artemis, Lust Academy, Freshwomen, Projekt: Passion are structured in "seasons" or "books" (same thing, different names only): so they put a whole and completed season/book to sell on steam. Once they finish another season/book, they put the new season/book to sell as DLC. It works because in each purchase clients will get a shitload of content and a completed "arc" of the game.
Meanwhile, games like Chasing Sunsets, Milfs of Sunville, Leap of Faith (now completed) are not structured in seasons, but simply in incremental chapters. So for this type of games, early access model is more suitable since clients will only need pay once and then get the incremental updates until game is completed (and each new update can increase the price of the game for new purchases untill the game gets the full price once is completed).