The Qu'ran is more important than the Bible on that score - it's so important that you shouldn't rely on translations. You should learn Arabic just so you can read it in the original language. Or at least that is what Muslims believe. And that is what they do.
To avoid distractions, and the problem of how to account for varying literacy levels wouldn't it be true to say that a higher proportion of literate Muslims learn Arabic to read the Quran than Christians learn Hebrew or Greek to read the Bible in the original language ?