most activities are to be done by users on the go are pretty much just web surfing, music or video streaming.
3Mbps are more than enough to have good user experience. 3Mbps can stream 720p/1080p without much buffering. On hotlink network that has lower latency, it could possibly be no buffering at all.
therefore, seriously, one does not necessarily to spend the extra tm10 for double speed at 6Mbps.
Even for those who misuse it as home broadband replacement, they are limited to the 50GB monthly quota and 512kbps throttled speed after that. so no point to go for 6Mbps too.
However, being said so, it is just rm10 extra, so if one really wants to have 'faster' speed, such as to allow webpages or video to load even faster, it is worth it too.
Thanks for the detailed explanation.. I'm the type that like to skip skip skip videos... I may need that 6mbps.. Haha