Keep or sell? ECCI TRACKSTAR 6000 to swap for fanatec V3

[super kermit]

I currently have the TRACKSTAR 6000 Standalone USB 2-Pedal Unit

They use potentiometers

http://www.ecci6000.com/6000_pedal_01.htm

Do I keep them? OR sell them and get a set

Fanatec V3?