The 2014 was dark red metallic, black, or blue. With the blue came a bit less chrome - the headlight shell and valve covers in particular. The 2015 was only available in candy red or black. If you wanted ABS, it only came on the black bikes.
Aside from that, I believe they are identical bikes.
I opted for the 2015 in candy red - that's what sold my wife on the idea, that it so closely matched our '91 Gold Wing Interstate. Not a hard sell, either.
I had to shop around to find a "new" candy red one in New England (July 2018). They're getting scarce in the warehouse. Still several '14s available. FWIW, I see a new one listed in Mobile, AL for $7999. Not sure on the caveats, but that's hard to ignore, even if you have to pay the additional $700 insult by not financing thru that particular dealer.
Absolutely love the bike! Mildly disappointed at the lack of options - I added a backrest and rear carrier until I get the '97 Tourer back on the road, at which point I may strip the '15 back to a solo ride.
Tridium fog/turn signals are in my shopping cart at CycleMax. The only thing holding me back is the idea of having two bikes in the garage at the same time, and not being able to ride either one due to repairs/mods in progress.

Great time of year to buy one - prices are down, but there is still some riding left before the snow gets too deep. I may have just talked myself into a blue one, too...