Right, but imagine a variation on that;
NOTE TO READERS: THIS IS MERE CONJECTURE, DO NOT TAKE MY MUSINGS AS FACT, I DO NOT HAVE INSIDER INFORMATION OF ANY SORT before you start it up, you snap in Prototype Nemesis to the centre of the spinning plate, some sort of locking mechanism interacting with a specialized tip. You hit the go switch and it starts up, gets to a certain speed, and releases Prototype Nemesis as a free-spinning "bey". Obviously this tactic couldn't have been used in the original Bey Ta Go machines because kids would have just taken the machine's bey. But for a home use system? Seems like that would be a fun design to me.
Flash Leopold, UK Superhero, you know where I'm going with this by now...