My first pottery instuctor told us in our first class, "if you don't like working in a kitchen, you won't like working in a studio." I think she hit the nail on the head. It's exact measuring, cleaning up and using your noodle to find new uses for items you have or can make use of.
I'm in central NC. I'm a hobbyist (far from making a living at this). My long time friend and I got into this about 15 years ago as way to spend more time together. We fell in love with the art and now have a small in home studio.
We order from Clay-King, Axner and Highwater. Even with suppliers fairly close, the shipping can be out there! Mixing your own glazes is much cheaper in the long run than the commercial ones. However, there is that initial investment in supplies. Pottery Making Illustrated had a great article in the latest edition regarding stocking for studio glazes. I believe you can purchase back issues.
Hope this helps and welcome to the forum! It's a great group of folks who will always try to help and answer questions.