Now that Drabek is gone, he was the last piece of the trade that involved the Halladay trade. There was also Travis d’Arnaud, and Michael Taylor, but Michael was traded right away for Brett Wallace, then Wallace was traded for Anthony Gose. This was AA's first big trade move as the GM back in 2009, these were 3 prospects he wanted and where are they now?
Drabek now with the White Sox, just never was able to achieve that dominance that he was able to when he was younger, also having 2 Tommy John surgeries changed him.
Travis d'Arnaud now with the Mets was traded back in 2012, in a deal that brought R.A. Dickey to Toronto.
Brett Wallace now with the Padres, who was drated by the Blue Jays in 2005, but not signed. Was traded to Astros in 2010 for Anthony Gose, and Anthony is now with the Tigers.
Basically was the trade worth it... There was some potential in 2 of the 3 original players, but with injuries it hurt the Jays in the end, they lost the trade imo in the end.