Glad your experience was as good as mine. Having played around with the RNS510 for a couple of days, I now realise it is a LOT more than just the RCD510 with satnav. I particularly enjoy:
- being able to watch DVDs, even on the move (for passengers!)
- extra bright screen with a colour scheme that matches the clothe seats exactly

- put my ENTIRE music collection on the hard drive last night - no more discs to fiddle with
- the laptop-like interface, so many more features, all it lacks now is Internet connectivity
I have just bought the TV tuner to see if I can get that to work, too. VW would probably sell more RNS510s if they changed the name (similarity to RCD510 makes you think you're just getting satnav) and brought the price down a bit.
Is it worth the £600 or so you have to shell out for a retrofit? Yes, especially as you can sell your RCD510 on for about £300. Is it worth the £2500 VW want to charge as an option? No. It's nice, but not that nice
