Yup, just because the tab says to play in a certain place, I know that I can add or subtract 5 frets and play on the next string up or down, and do so instantly. Being able to convert notes from a staff to a position on the fretboard with the same efficiency that I was able to achieve on day 1 with tab takes years of practice, for which I don't have the time. Of course if I was a professional musician where I was required to sight read music I hadn't heard before, it's a no-brainer - notation all the way.