For me, the 1300 isn't a big enough leap in anything to warrant a change. Although it does have some new toys and gimmicks if they're your thing !
It's a new model. So even though you can buy one, it's still very much in development. It will be another 1-2 years of endless recalls, software updates and other problems before it's reliable enough as to purchase as a "keeper"
BMW always perfect a model and then immediatly discontinue it.
A GS is today what a Honda VFR , Ducati ST2/3/4 or BMW R1100(R)S used to be in their times...A sports-tourer aka practical sporty road bike ! Or do you think a bike weighing 260-280 Kg & costing 30 grand is suitable and ready to play with and thrown down in the dirt ? Despite the image 90% of all GS including mine never see the dirt or only unpaved roads very occasionally where could could take any other road bike...But the GS is more comfortable and faster / easier to ride fast than the sports-tourers of years ago ! But still not good enough to upgrade from a 1250 to a 1300...That was the reason of my posting and I gave the BMW the honey do list what still needs to be done to appeal to the even most loyal and jaded believers in the Boxer-TL-shaftdrive gospel to give them a reason to open the wallet faithfully again...LOL And please add some exitement last seen 25 years ago with the R1100S and Boxercup! Its about time , again instead of boring us with quieter exhausts and electric windscreens and blinkers that also are brakelights while the nerds only complain that they cant get no backlid blinker buttons like on the Multilala on Apple CAR play like on the Afreekatween....LOL 2.0
A newish 1250 like the one I ve just bought (1yo 4k miles) is £10k less than the 1300. A good enough reason. Think how many other bikes you can get with the change… how about a blackbird and a 1150gsa for winter?