I've tried a few other music players, but I'm not interested in a huge application that will scan my hard drives and network (sometimes constantly) looking for things to index. I don't need it build a "library". I don't need a record of every piece of media I have sent over the internet to be logged by god knows who so it can try to find album art or lyrics. I don't need it to play video. I don't need it to pull "related" content or "suggestions" from the web.
Old winamp didn't do much, but what it did do, it did very well. These days I use VLC, and it comes pretty close, but it is overkill, the UI takes up more space, and it comes with its own little annoyances.