Hehe twincharger appreciate your insight
so here's my insight pulak

the 2 situations given by you i would say is extreme opoosite ends of scenarios
ure saying as if one is mutually exclusive of the other, which isnt really the case, theres a middle landing point somewhere in between

do agree that with expected population increase, u will get more traffic congestions
but do note that everywhere also highrises are coming in thick supplies man, so its not a problem limited to cbj
cheras? kota damansara? ara damansara? already crazy as it is yet more highrises on the way
tho mrt will somewhat offset this, taman bahaga and kj still jam like crazy even with lrt station there

point that ure missing is at least cbj is traffic good now, if worsen also wont be as bad as others
besides that, cyberjaya planning is controlled and u can easily forsee master developer improving roads when traffic increases
not to mention ALOT of greenery in cbj with a beautiful lakeside jog/walkway..incredibly hard to find such luxuries

gardenview by setia haruman right? quality damn good me thinks..but pricing too high
i suppose setia haruman is renowned for wrong pricing > bad sales
im guessing they need to boost up repo, hence ceria very competitive

also note that being master developer of cbj, they can easily undercut other developers
as they own the land, unlike the rest who buys the land at higher cost