Why is it beneficial to compare prices before making a purchase?
you can find the item you want at the best cost.
you can find the best product at the most expensive price.
you can find the item you want to buy at the first store you go to.
all of the above

You can find the item you want at the best cost.

Explanation:

Comparison shopping helps in buying the product of choice at the desirable cost. As internet shopping is developing very fast the comparison shopping has become easier.

More than 80% of buyers compare the prices of the items they want to buy. It is seen that the higher the price of the item the percentage of cost comparison of that item online increases.  

For example, most persons search to compare the price of a laptop which they want to buy from their local market to buy their favorite item at the best cost.

sure. but could you me with my question? ?