Hell no they're not worth twice as much.
I started my search having swallowed the "don't touch the PH1 with a barge pole" argument, saw a few rough PH2s for 12-13 grand, finally decided to look at PH1s and immediately found a peach for 3 grand less than the animals I'd been looking at. Drove it and it felt tighter than the PH2s I'd driven due to the condition and complete lack of miles, and that was that.
The presence is identical, looks wise it's cleaner, handling wise it's lairier.. If I wanted more predictable handling I would've bought an Audi S3
PH2 is nicer inside no question, but the things that we're actually bothered about are the same (the shite seats, shite driving position, general quality of Renault plastics). I can't believe the extra grunt is noticeable either with all the pointless/heavy "enhancements". Again, if I cared about the interior I wouldn't have been considering a V6.
PH2 pros: Colours are better, less have been treated like shit and badly modified by neds, it's easier to find a good one (with a 14k+ budget), easier to sell due to the 182 and Scooby drivers filling the internet with unresearched shite about the PH1 and the 18s are better (easily rectified if you're not an OEM whore, which unfortunately I am).
I'm not convinced the build quality is any different between the two, both are pretty cack.
I don't understand why anybody would want to hold on to two PH2s versus a PH1 and a PH2. PH1 and a PH2 side by side will always be the dream for me.
PS. I love PH2s and do think they're superior, but in ways that are nearly irrelevant (and it appears our European friends agree, based on prices over there)