Thought it would be interesting to take a quick and dirty look into the Marlins trade 3 years later because it's come up a lot over the last few days. Assuming a flat 7M/win over the three years because it's close enough.
In
Buehrle = 8.4 RA-9 WAR, 43.5M salary = 15.3M surplus value
Reyes = 6.2 fWAR, 48M salary = -4.6M surplus value (through 2015)
Johnson = 0.4 fWAR, 13.8M salary = -11M surplus value
Bonifacio = who cares
Buck = who cares
total surplus value acquired = about 0M.
Out
Escobar = 5.6 fWAR, 15M salary = 24.2M surplus value
Alvarez = 4.2 fWAR, 6M salary = 25.2M surplus value
Desclafani = 3.3 fWAR, 1M salary = 22.1M surplus value
Marisnick = 2.4 fWAR, 1.5M salary = 15.3M surplus value
Hechavarria = 1 fWAR, ~4.25 salary = 2.75M surplus value (with pretty dubious defensive metrics)
Nicolino = who cares
Mathis = who cares
total surplus value traded = about 90M + whatever Alvarez, Desclafani, Hechavarria, and Marisnick accrue over their remaining years of team control.
So probably a net loss of value in the $100-150M range.