if i buy MRCB, i would have restless night
if i buy MAHSING, i would sleep loud & sound

as simple as that

It depends. Generally listing is good is when company need to raise massive capital to expand businesses, which is beyond individual ability and ability to absorb the risk.

If a company is running steadily and highly profitable and company doesn't short of fund to expand business or company owner has the ability to finance and able to take the risk, nobody wants to list their company. There are plenty privatisation due to this reason.

So, main point to stay a float is you need to raise capital for business expansion.