It depends on what you want out of a dab rig! Small dab rigs are great for easy handling, storage, and transportation, but a small dab rig has a smaller water reservoir, which means less water filtration. Larger dab rigs will offer more filtration and are more likely to have extra filtration features, like percolators, but can be expensive and cumbersome to use. Which size you end up with will be based on what you need most out of a dab rig.