The biggest difference between resin and filament 3D printing is quality. Resin printers output really smooth, really detailed prints that are great for highly detailed models and production-quality parts. If you're OK with a print that looks a bit rougher, then go with a filament printer -- not only are the prints faster to output, but they are also cheaper. Also, if the power goes out, a filament printer can pick up where it left off -- which means you don't waste time and filament.