I've recently started playing Ni No Kuni: Wrath of the White Witch. I'm about fifteen or so hours into it and am loving the balls out of the game so far. I know some didn't, but each to their own. However, there is one thing that is constantly annoying me, and that is the lack of voice acting in the game. The main characters have dedicated voice actors, one of which is Scottish and funny as all hell. But for a majority of the game, they only speak through dialogue boxes. This seems to be a somewhat common thing in JRPGs. I understand why it was so back in the day, when we didn't want Final Fantasy 7 to cover more than fifteen discs. But nowadays, where we easily have the technology (We can rebuild him!) and the ability, why am I being forced to read these dialogue boxes when you already have an actor on hand to read the lines out, and do more than a couple of hours of work? I get rather bothered when I'm reading some dude tell me what seems some rather important stuff and there is no voice nor even any music at times (To set the atmosphere?).
TL;DR: In this day and age, why are there full games on console that don't have full voice work, and why does it seem to mainly be JRPGs?