Assuming you are familiar piloting with a 4-channel Tx and a plane with both rudder and aileron control you may get bored buying a less expensive 3-channel R/E/T plane.

What are your longer range interests--electric gliders/slope soaring and thermal seeking; sport/racing; flying combat foamies; extreme 3D perfection; indoor micros, 4D; helicopters; ducted fan jets; custom designs and build projects; etc.