When comparing prices, you must look beyond the sticker cost and evaluate the Nozzle Material and Sizes. High-quality guns feature stainless steel or tungsten carbide nozzles to resist the abrasive nature of texture materials (like stucco or drywall mud). Ensure the kit includes multiple nozzle sizes (typically 4mm, 6mm, and 8mm) to handle different viscosities. Additionally, check the Hopper Capacity; a 5L to 7L aluminum or heavy-duty plastic hopper is standard for professional use, balancing weight and coverage efficiency.