I didn't see the place a few years ago so it's highly likely (and sad too, I guess) that what looked like "plenty" to me is actually only the dregs of what it used to be. As you say, almost all the plants that I saw were right up above the road and too high to photograph. I would say they are only there because the collectors were too lazy to climb up. I too saw LOTS for sale in many of those garden shops along the roadside that also sell cacti, etc. There are even a few stalls that adertise themselves as "wild orchid" specialists!
Figure that out...
I'm back! Like Choong said, nepenthes are very scanty by the roadside, but surprisingly enough, I managed to find a few with the help of a good guide!
Near the summit (close to 6666ft), there is a jungle trail that affords good views of many nepenthes. I saw two species, but couldn't identify them. Pictures will be posted soon.
Lower down, I managed to go off the road to catch sight of N. sanguinea, N. reinwardtiana (very rewarding find!) and one more nep species I was unable to identify, for a total of five nep species on Gunung Brinchang itself!
I'm ecstatic, and once the pictures are developed they'll be posted right here.