Cheap if you do it yourself. If you are changing just the struts and not the coil springs, get you a coil spring compressor from the local auto store (about $20-$30) and the new struts. Take it all apart, compress the coils, swap out the strut, and put it back together. It's straight forward and easy. I did it on my 2016 F150 not too long ago to put in the Bilstein leveling shocks. Paid about $240 total between the new shocks and the coil spring compressor - the rest was my own labor in my shop with a 12 pack of beer.