I don't think everyone is getting rid of their Beats Studio3 inventory. Best Buy has them at a pretty normal price of $309.99, just $40 off of MSRP. It may be that just generic retailers (like Target) are getting rid of them, but retailers who specialize in electronics (e.g., Best Buys) aren't?
That’s about right. Electronics retailers will continue to carry it but it isn’t doing well in general retailers. Wouldn’t be surprised if Target re-releases it in November at $149.