Since most on here have never been further than the next village why:-
do you need the bigger tank
need the spoked wheels - as alloy are better for road use.
bigger screen is not always best.
I have only needed the bigger tank once when crossing europe but if needed I could have found some juice easy enough.
I think a lot of this GSA is better, more planted etc is just so that people can say - mine is bitter than yours - and Ewan had one of these.
and yes - I have had several GSA's - very reluctant to get another
the one thing you can say about the GSA - it has more bits to corrode.