Greetings all. I was hoping that I could get some advice from some of the folks here. I'm currently using a supplementary line from Maxis with a RM30/month commitment and I just pre-ordered an iPhone 3G S 16gb from Maxis.

Now my current options are:

a) Purchasing it outright via the Hotlink prepaid package
b) Sticking with my current supplementary line and adding on an iData 50 plan
c) Swapping from a supplementary line to a main line and subscribing to the iValue Plus 100 plan.

Option A would not offer me any savings on the phone and I have the added hassle of swapping sim cards each time I want to pop online without using WiFi.

Option B could be a little costly as the cost for my supplementary line and the iData 50 plan would exceed that of the iValue Plus 100. RM30 (fixed commitment for the supp. line) + RM50 (iData fee) + RM30-RM40 (phone usage per month)

Option C would mean that I would have to terminate the supp line and remain as a main line after the contract is up.

Now, I'm not very sure if there is a huge difference in cost between having a supp. line and a main line. My phone usage each month so far is sitting at around RM30-RM40 for the last couple of years. Would appreciate if I could get some advice as to which would be more cost-friendly and if there is any huge difference between a supplementary line and a main line.

@tinkerbel

Ta for your info. I wasn't looking for someone to give me the answers here, but just hoping that I could get another perspective on my predicament. I had noticed that the iValue plans do not include SMSes in their plans and I was planning on getting the Value SMS extra for an added RM8/month. Oh the trials and tribulations of being a Mac addict! I'm leaning towards option C at the moment and then swapping back to a cheapish Value Plus plan once the 12 month contract is up. Looks like I've got more to ponder on. Thanks for clarifying certain doubts I had!