Just left my local Target where they had 1 Sonos Connect Amp for $249.98 on clearance.
Here’s the DCPI 008030100 zip 66044. Brickseek shows only this one and one other in KC discounted to $349.98.
http://brickseek.com/target-inventory-checker/
This is just a heads up and you may very well not be able to duplicate the deal but good luck.