For most people without any health issues, aches, or pains, the answer is no. A manual grinder works fine, and no one could smoke enough weed to warrant ditching it.
The people who should get electric grinders are anyone with conditions that affect their dexterity. Arthritis, wrist and hand injuries, ligament issues, and carpal tunnel are all reasons you would want to smoke weed, and they all make grinding near impossible. If you’ve got any issues of the hand or wrist, I can’t recommend an electric grinder enough, and any of these options will serve you well.
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