The price on a quote is only the first cost. A commercial refrigerator runs around the clock for years, so electricity is often a large part of its lifetime cost. Add installation, AMC or service fees, parts, the cost of downtime and spoiled stock when it fails, and any disposal cost at the end. Two units with different purchase prices can end up costing about the same, or the cheaper one can cost more.
To estimate TCO, compare the rated power consumption under similar conditions, your electricity tariff, the expected service cost and the likely working life. Consider how well each unit copes with your conditions: a cabinet that struggles in a 43 °C kitchen will run longer, use more power and fail sooner. Availability of parts and service in your city also affects downtime.
A supermarket owner in Lucknow comparing two display freezers might find the cheaper one draws noticeably more power. Over several years of round-the-clock running at commercial tariffs, the difference in electricity bills alone can outweigh the gap in purchase price.