The only difference between Nseries and Eseries has been build quality, battery life, and included apps. The Eseries devices have Mfe and multiple desktops and settings for work and personal usage, but usually lack in the multimedia space. The Nseries have several models that also ship with the various business apps, and have the better cameras and media features.

I find that I prefer to go with the Nseries and install the missing business apps for a well rounded business device, but you may want to save money and go with the more sturdily built device.