Guys, I think buying a bass multi effect will be fun for me. I will also sell my cheap bass amp and use the multi effect with a headphone. But please help me, which one should I buy? ZOOM BFX-708II ($149) or Korg PX4B Pandora ($219) or maybe a Digitech BP50 ($79) I also found a used Korg PX3B for $135. What should I do? Maybe I shouldn't sell my RB30XM Randall Amp for a multi effect?