I know it's a really bad cube but I'm curious as to how it feels and I think it'd be cool for collection purposes, but since it's so bad for its time I won't want to pay more than $5 excluding shipping.
I don't know what the exact difference is, but the old batch ones are absolutely awful. I have one, and it's so bad that my hands physically get tired after doing 10+ turns on it. It's not that it's slow or anything, it's just tiring and awful to use.