The A. circinatums are the last to leaf out (at least here). This one is just beginning but what a show with just a few small leaves!
oops meant to post in Maples...it's early here!
You do have to wonder about the similar timing of its appearance on the market but otherwise stock of this one I have seen here has appeared more strongly colored.
Here is a link that might be useful: Acer circinatum 'JFS-Purple'