Pinsound has SIX available soundtracks for Funhouse, the original raw download from the game itself, and then five variants contributed by users. (Once you have Pinsound, the soundtracks are available at no additional cost). What that means is someone in the user community took the time to clean-up, improve, edit, modify the list of original audio clips into 'something better'. Everyone has different tastes, so you'll get one or more new soundtracks. (For Funhouse you get SIX choices, but for some titles, like TOTAN the only available soundtrack is the original!) For Funhouse, most the new available soundtracks are very true to the original, but cleaned up in quality, added stereo effect, reduced mid-range muddy sounds, etc. mr_tantrum did one that seems to be a great quality-first update if you go the Pinsound route (check with him). (There is also a christmas theme if you feel the holidays approaching). Or if you are an audio engineer, you could re-theme the soundtrack entirely yourself to be Marlon Brando or Sean Connery or CP3O! LOL. Lastly, you can swap soundtracks easily, so you aren't committing to a christmas-themed Santa Rudy forever!
Bottom line: For the $350 plus the cost of new speakers, you can take the sound so much farther, and you could even uniquely go further by adding your own customized audio clips on top of the community's soundtracks available, since every clip is still editable regardless of source!