I am a member of the local chamber, but they are kind of a cliquish bunch....so I joined Rotary which has done far more for the community. Rotary clubs welcome visitors from other clubs the world over. In my experience they seek out ways to connect with you as a person and then as a team mate in getting things done. I like it.
Chamber Annual cost is $120, Sonoita, AZ and has monthly mixers.
Rotary is more expensive and meets weekly.