So in oklahoma the dispensaries individually choose their prices. I’ve seen ounces go as low as $57 (not horrible either, did the job) most places around here do $100 cheapo ounces, but they can go for $200+ as well depending on quality. One of the dispos I frequent covers tax so you don’t have to deal with change.
I usually go with an 8th, less chance of the flower getting dry and degrading than if I get an ounce.
Hope that answers your questions