Obvioulsy I can't comment on other companies bush kits, only our own.
We produce our own kits, we don't buy from other companies and add a mark up. We use stainless steel for the crush tubes not mild steel, these are machined from solid bar on a CNC lathe to high tolerances. We don't use thick wall tube cut on a band saw (I've seen this done)
Yes, we are a bit more, but that's because of the cost of the materials and method of manufacture that we use.
For comparison I've listed everyones bush kits below along with a picture of their product, prices include VAT & postage....
GTS.....£64.63
Rally Design....£96.50
Saturn Sports Cars....£108
3GE Components....£112.70
Kind regards
John