Hi Rossi
I am in the same situation as you.
Cant make my mind up.
One day its definatley the gs next day its the gsa.
Problem is i have now spent about 6hrs each on both bikes and in their own way think there both fantastic bikes.
Anyway with my limited experience of both bikes here are my pros and cons
GS pros
Better looking IMO
Lighter. Slightly better mpg. Slightly sportier handling.
Feels much easier to manhandle
Lower seat height (only got short legs)
800 quid cheaper(but i would want wire wheels and pannier rails for alloy panniers. Which takes care of that)
GScons
Screen not as good as GSA
Does not feel as planted as GSA on motorways etc.
Shorter range (my pet hate is filling up,bikes or cars)
GSA pros
IMO 800quid for the extras is good value.
You can see so much sat in that seat.
Has real presence on the road.
Great screen for me no buffeting much quieter than the gs
Felt really planted on fast roads.
Jo my wife liked it better on the back(but said she could do with a ladder to get off) we have a VFR 800 at the moment.
Felt slightly more relaxing to ride (possibly reduced noise)
GSA cons.
Much more difficult to manouvere when sat on the bike (my short legs again)
I also think it depends on what your use for the bike is going to be.
If i was commuting, the usual 1day ride outs and occasional week away, i would go for the GS.
We are going to be doing at least 2 european trips per year and several shorter trips inbetween,which is swaying me toward the GSA, although i know the gs is more than capable.
Today its the GSA but we will see what tomorrow brings.