Looks cool though, if I were rich I'd buy three.
You might have to, because if what you are saying is correct, the average user may destroy one fairly quickly as it is too fidgety.
If you accidentally have the platform lose balance, off it will fly or crash down hard on the magnets, risking both your vinyl and your stylus.
Sure it looks cool until your recordings get destroyed. In that case, just have a sacrificial record on infinite loop and crap stylus and play the recording off an iPod hidden behind it ... your guests will be impressed by the visuals but will never know.