The only drawback is that the Quattro does not have multiple model memories. When you switch from one plane to the other you may have to flip one or more servo reverse switches, and you'll have to move the trim levers around.

On the Horizon Hobby site:
A JR Sport flight pack that includes receiver, 4 servos, battery, switch, etc costs about $100
A JR compatible Hitec flight pack that includes receiver, 4 servos, battery, switch, etc also costs about $100

The JR SPORT SX600 6-Channel radio system costs about $160. It has some programmability and has 10 model memory so you can have different settings for 10 planes. If you buy it on the same channel as your Quattro you can use it to control your current plane and your new plane.

If your budget can handle the stretch, that's the approach I'd take.