brakes conversion 99 civic

why would honda put rear drums on such an otherwise sweet handling car? yeah they work, but as soon as i put some nice wheels on it i cant stand seeing them, plus discs are just so much better! so ive been looking for rear disc conversions and found a few but wondering if anyone out there has used parts or suggestions. my instinct says just buy a nice new conversion with all the hardware but theyre kinda expensive. thanks