Daunting? Perhaps. I find the casting process to be quite meditative. I spend about 15-20 minutes cleaning the molds from the previous session, mixing plaster and pouring the selected molds. I set the timer for the appropriate scraping time, scrape excess plaster when the time is up, and then set the timer for 30 minutes. Demold, and clean the molds again. When I cast I usually put in between two and four sessions per casting occasion, resulting in anywhere between 75 to 200 different blocks, somewhat depending on the molds, of course. Actual casting time - excluding the curing time - to get this amount of material is 1 to 2 hours of work. My typical SH corridors use anywhere between 30 and 80 different pieces. Is it worth it? As long as the casting part of the process is fun, or at least not boring, it's definitely worth it!