When comparing prices, you must look beyond the surface and evaluate the Ply Rating (PR), which directly affects load capacity and durability; typically, a 6PR or 8PR is standard for heavy-duty agricultural use. Additionally, check the tread depth and pattern (e.g., R-1 Lug pattern), as deeper lugs provide better traction in muddy soil but may increase the cost. Ensure the rubber content is high—natural rubber content above 40-50% is ideal for preventing premature cracking and ensuring a longer service life.