When comparing prices, you must ensure you are comparing like-for-like specifications. Key factors include Power Rating (kW/HP), Voltage (Single-phase vs. Three-phase), and Efficiency Classes (IE1, IE2, IE3, IE4). High-efficiency motors (IE3/IE4) have a higher initial purchase price but offer significant long-term energy savings. Additionally, verify the Insulation Class (typically Class F or H) and IP Rating (e.g., IP55 for dust/water resistance), as these directly impact the motor's durability in industrial environments.