Hi everyone. I recently got a free Tascam Portastudio 488 from a friend. It needed some repairs, so I brought it into a local music store- the problem being with the volume, although I also wanted them to do a thorough cleaning. They just called me with the quote, and it's $175-200- it's basically for cleaning and "repair group #2"- the volume. So, my question is whether it's worth it to get it fixed. Thanks!