Some interesting stats from the other side...
Founders pack sales and forum statistics
Founders packs raises $610,000+ in the first 24 hours!!
Also for anyone with questions about the founders package:
Russ Bullock taking questions
Common questions and answers
FYI - If you go legendary you effectively have four additional mech slots to start with, four for your founders mechs and four starting slots. IMO this increases the value of the legendary pack since the starting slots appear to be four and additional slots will probably cost $$$