Considering the fact that Inter's starting XI includes 34 year old Mhki, 35 year old Acerbi & 37 yr old Dzeko, all of whom were recent signings, SMS is a spring chicken. You can argue that it will be good to sign some youngsters for the future, specially in midfield where we already have quality starters & can afford to give time for the new signing to settle & grow. But lets not equate signing a 28 year old at his prime to a geriatric policy.
Anyways, just to weigh in with my opinionon this SMS vs Frattesi argument, I would rather Inter sign Frattesi. Mainly coz of Inter's/Suning's financial situation & the reason I mentioned above. Inter should focus on reducing the wage bill, so that there is less need to sell our key players. But SMS is clearly the much better player & if Inter had money I would clearly prefer him. 40m for SMS is a bargain in todays market & I suspect this value is low only coz his contract expires next year.