Overdone?

How are the roads where you live????

That's the only question I would ask if you were looking to get coilovers for your car.
If you have lots of bumpy roads and potholes etc......
Coilovers can be very stiff, a lot different then just lowering springs.
Be prepared to be abused while driving your car on non smooth roads, depending on the coil-over set up you go with.

I don't live there anymore, but I know the roads in Colorado are pretty bad. Pothole haven of the world. The temperature changes there are so extreme that the roads just don't hold up.