It's not really worth losing how ever many hundreds of £ to change cars just because the other is a nicer colour personally.
To change to the ED30 is a good upgrade, though if changing cars it's nice to sit inside and notice all the differences.
I would suggest a white MK6 GTD, guy at work has one and it looks amazing, the interior is great (seats/dash etc) and it's mapped to around 200bhp, but wit much better torque than a GTI could get. And within budget