Do you like gold frames ???
There are a few posts on this already. :rolleyes
If you have the cash, especially buying used, the factory makes a lot of sense - if you can go with the school kid on a sunnyD trip colour schemes.
Used about £1000 difference will get you forged wheels rather than cast, Ohlins front and rear, a few bits of carbon bling and a dodgy coloured frame. To uprate the wheels, forks and rear shock alone will cost about £1500 buying the bits used from Ebay.
The Ohlins IS better than the R model suspension, especially the rear shock, which is a POS. The Forks aren't so massively different, but once set up properly you can tell the difference, the Ohlins shod bikes are plusher, for want of a better word. The Lighter forged wheels help the bike turn more quickly, subtle, but it is there.
Carbon, well it's bling basically. :yes
It's your money & your choice, if you don't get on with the Factory colour schemes - and many don't - buy an R model upgrade the rear shock & consider revalving the forks, the rest isn't critical. The cost will be about the same.