Should I get a zapper or a Thermacell-style repeller?

They solve different problems. Zappers reduce overall flying-insect populations over time and are entertaining to watch; repellers like the Thermacell E-Series create a roughly 15–20 ft mosquito-free bubble around a seating area for a few hours. Multiple Reddit threads in r/camping, r/BWCA and r/Costco recommend using both: a zapper at the yard edge, a repeller at the table.