Good question

There are reasons why I have 2 SG account

1. To diversify

2. To avoid putting all my money in one basket

3. To transfer money in between SG bank account to avoid dormant or inactive account

Yeah that's very true, one day they'll probably claw it back - just matter of time. To be frank there's not much to the whole "Premier" thing as well other than once-in-a-bluemoon type of convenience (i.e. when I needed to open offshore AU account before being there, physically, without Visa and all). Beyond that it's just overrated title that people don't really care about (not me at least)
So long as they still let me to keep it for free, I'll continue to hold it till "that day" comes