For me voice acting is crucial in RPGs. I'd always appreciate the art of bringing a character to life which cannot be achieved without a good VA performance. I always play in English even though it is not my native language, yet have no trouble to track both subs and voice simultaneously. Can't even imaging voice distracting from the text lines. Its literally same as watching films with subs. And cinema is a great example how VA can change the perception of the story and the flavor of characters portrayed. Take any Korean film and try watching in English dub or in Korean with sub. MASSIVE difference in character energy.