Yep, that's my story and I'm sticking to it... Got a little tipsy recently, went on eBay, found a '10GT w/5600 miles on it and the next thing I knew I was on a plane to Bellingham, WA to pick it up... Rode it from Anacortes, WA to Vegas (1300 miles, 2 days) and all I can say so far is, WOW! What a difference! The improvements and refinement (between the 1200 and 1300) are all so very subtle but, when combined they really do reveal an incredibly improved package.
Now, I'm sure many of you will be tempted to drone on about the 1600 and how much better it is than the 1300 and while I agree, I will tell you that I rode a friend's 1600GT a while back and liked it, mostly. What I didn't like was the plumb upright seating position. After about 20 miles, I became so uncomfortable that I traded him back to my '07. I then began thinking about dropping $28k on a new motorcycle. Then, farkling the shit out of it (2k?) and, well it wasn't long after that I started drinking again but, I digress...
While I've read all the posts about the differences between the 12s and 13s, I never really believed it would be as satisfying as it is. The fueling is just a hair shy of perfect, steering is lighter, turn-in is sharper, low and mid-range torque is much improved and no more clutch judder. I could go on and on but, for me these are all icing on the cake because the reality is that I spent less than half of what I would have for a new 1600 and all my farkles fit (except for the mirror hole mounts, new Rams are on the way)!
Pardon my rant on a topic that is I'm sure quite stale by now but, I just can't help shouting from the mountaintop!
Anyway, if y'all know of someone hunting for a great running and looking '07 that's been well cared for, serviced by BMW all its life and is up to date on all recalls/maintenance, I've got one that's no longer being ridden. Just do me a favor and don't tell them how much better the 1300 is