Honestly, I am not a big fan of Jumble Displays though I understand that this display strategy plays a role in getting customers to shop. When the message is one of extremely popular priced items then it becomes appropriate to use this display method. Oftentimes, a store may wish to drive traffic through loss leaders that entice shoppers through its offer of  undeniable great values. Piling it high conveys the message of ‘come on in, lots in stock we need to get rid of and such bargain prices!’ Just be careful that you do not devalue adjacent merchandise nor your brand identity.   When using Jumble Display, keep in mind accessibility to products as well as any minimum standards you have set for your store. Just because it is a jumble, does not mean ‘trashy’