I work in a large teaching hospital in CA and we mostly utilize scrub techs. However it is beneficial to have the experience because they can use you for break relief if needed, but you wont automatically be scrubbing. That being said I know other major hospital in the area utilize nurses for both roles. I think it widely varies depending on the hospital and area you work and should be looked at on case-by-case basis. I went through a periop program that used to be 6 months scrub / 6 months circulating, and now its just under 6 months and we scrubbed maybe 6 times total, so I feel as though I am at a disadvantage if I want to ever go anywhere else. There is definitely a major shift towards techs though as it is much cheaper for a hospital.