$200 for a starter kit. $40 for a battery. $40 for a USB charger. $75 for 30 cartridges. Not reasonable.
Mmmm.... I would recheck your facts if I were you...
$80 for starter kit. $30 for battery. $20 for USB charger. And yes cartridges are $15 for a pack of 5, but they last longer than other brands cartridges.
Also, I find the 2-piece system much more convenient than the 3-piece systems. No having to change atomizers or filling up cartridges with messy liquid nicotine.
The ecig itself may be larger than most ecigs, but that allows the battery to have a longer life than most, and may be why the battery is $30.
My opinion is that this is one of the better ecigs out there.