Over the course of the first few months at the pottery studio I logged over 100 hours.
My immediate goal while working a full time job (M-F) was to get key access so that I could use the studio anytime from 6a-11p. To do that I needed to log 40 hours of time (typically 2 months in the studio). I had a goal to log 40 hours in my first month so that I could more quickly open up the doors of having free range access to the studio to allow me more flexibility to throw around my work schedule.
A monthly studio membership cost around $250 for 24 hours of studio time. The first month I logged more than 40. Each extra hour costing $10. Small price to pay in my opinion.