Like to share with fellow bros here.
Now at BatamFast ferry, they are offering season Passes for regular Batam travellers.
Value Pass (30 days) SGD 180
Silver Pass (90 days) SGD 520
Gold Pass (180 days) SGD 1,000
Platinum Pass (360 days) SGD 1,800
http://www.batamfast.com/membership/seasonpass.ashx
One need to travel 5 to 6 trips a month, then worth buying those passes (Mthly passes).