Droped spindles VS offset bushings

IMO, If you lower the car more that one inch lower that oem spec. the front end geometry goes out the window. Was it all that great to begin with? NO. but with that a fact. you need to be into changing the upper control arms and or pick-up points to achieve more castor, and correct the camber curve. that's where dropped spindles are some benefit. In that you can maintain the imperfect factory geometry rather than make it worse.
If you are only interested in a pleasure driver on the street or straight line stuff it's not too big a deal, but if you want a "canyon carver" then some changes will be in order.