I just found out about MC in July or so and I must say that I am so thankful. I format our house computers every summer because I'm out of school and I spent hours looking for a media player. Unfortunately, I didn't find one in time and I had to settle with the terrible iTunes. It does not work well with the database being stored on a network so I have to move the My Music folder and trick it. I just hate everything about it.
One day, I seem to recall that I might have found MC from the FLAC web site, so I tried it and could not stop being impressed more and more. I immediately got rid of iTunes and began the switch to MC. This also gave me the urge to rip all my music to FLAC and scan all the cover art in by hand to ensure high resolution/high quality/ exact images for all my CDs. MC has allowed me to rediscover music. Also, since I switched to FLAC, I threw out all the MP3's I had ripped from many (some scary) sources and I now have a complete library direct from CDs (many used) which I own. About $1000 later, I have what I would describe as a perfect music library. Before, I had a lot of missing information and album information was rarely correct--it usually just said Single.
Now to my real question. I hear a lot about how people have been using MJ for a long time. How old is JRiver? Was there ever a MJ 1.0? 2.0? They're almost to version 12! How often do new versions come out on average? Once a year? More, less? I think MC is addictive. Once you've experienced the power features nicely configured in a beautiful program, you can't go back. I know you can get all the functionality with various free programs, but MC does it all so carefully and neatly.
They also keep making the program better with user requests, which makes it even more outstanding!