These days, I would predict that 99% of players move for money first, chance of winning silverware second.
It's difficult for any human being to turn down a wage of £250,000 per week after earning less than half of that previously.
Money talks in modern football. Man City and ourselves have loads of the stuff. If you throw enough at their agent then they'll come. Lets not forget that City managed to sign a very promising Robinho when they were still a nothing club. We managed to sign Di Maria and lure Falcao to Old Trafford without CL football to offer.
Aubameyang is an exciting striker. Pacey with a good finish and has proved at Dortmund he could probably tear up any league. But nothing is certain in football as we all know. Plus there is no way Aguero will be happy being a squad player so if there is any truth in this rumour, Pep will have to play two strikers which means either a 4-4-2 diamond, 4-2-2-2 or 3-5-2. All of which will see City exposed at the back, unless they bring in some very good CBs as their current options are gash.
My personal opinion is that City are looking to sell Aguero to a PSG/Real/Bayern whilst he is still worth a load of cash. He is far too injury prone to rely on over the course of a season which includes 38 league games, FA Cup, League Cup and CL fixtures.