I never said you had to spend that much to get that low. ( didn't know if you could read or not). I said any coils below that price range and the drive would be complete crap whether or not one person likes it or not. There are reasons for coils costing what they cost whether cheap or expensive. I've been on plenty from k sports to kw and I can assure you you get what you pay for.
Anything that low on your k-sports I can assure bang like crazy on anything other than a normal dip and your used to it so its not bad. But hey I'm jut talking out my ass I would just shell out the money for air ride for the hell of it.