That means you didn't watch the Portuguese league + CL that season.
To be totally honest, I watched Anderson in the Porto shirt and I must admit, Anderson's potential was more than Pastore's at first glance.
18... Strong like a bull, had a great touch, tried tricks/flicks and was just a great flair player to watch and dominated MF's in that behind the role role for Porto in the CL's. He was very similar to Ronaldinho the way he played the behind the striker role... Well yes Ronaldinho moved to the left afterwards but they both had the flair.
18m for an 18yr old which showed huge potential in the CL was what SAF risked in Ando, I thought it was a good try as he did show a lot of potential.
But after continuously watching Ando and Pastore progress, well Pastore's definitely more on-form now. He'll cost more no doubt but if 30m, it'll be unreasonable as he isn't CL tested yet, okay he has done well in the Seria A but 30m was getting you like the Serie A legends like Shev, I don't think Pastore costs that much yet, 25m would be about his true price if the Palermo president isn't asking over the odds.
Anyhow, Pastore is 20 now so he'll probably cost more... but 30m would be a deep risk which I don't think we'll take.