Rados produced in recent years have a unique style that appeals to some folks but not to others. I think they've become very fashion/style orientated and maybe that's why they are not highly regarded. The quartz movements used are decent quality, but technically nothing special. Once you look behind the obvious style statement of the Rado look, there ain't a lot there to justify the prices IMO.
Having said that, I think some of the black/gold models look nice, and I would consider a used one at the right price simply because they are different to most of the Rolex/Omega stuff I like.
£300 for a used one is OK, but >£1k new.......no chance!
Paul