Finished the Reds missions a couple days ago. Didn't have amazing luck with the diamond packs, but I pulled Nomar Garciaparra (91) and Dennis Eckersley (99). The latter sold for above 60k and has recouped most of my investment. Votto and Pinson both make my team as well. Votto as starting 1B, Pinson as my LF before I got Davis (4 WAR in his first season in Perfect), now he's my backup fielder and top bench bat vs RHP.
Thought about selling Eric Davis (seems to be going for about 60k as well), as that would have given me an actual profit for the collection, but I decided to use him because my team is trash and he's been pretty good so far.