In the past these experiments I have seen always came out strictly by customer. Some customers just get cooler offers than others. The most regular buyers usually didn't get anything, neither better prices nor coupons.
Yours no-coupon ever Amazon customer since the last century and then some.
So you want to play with cookies at least, but probably with proxies.
Yours no-coupon ever Amazon customer since the last century and then some.
So you want to play with cookies at least, but probably with proxies.