English to Persian (Farsi) Marketing Marketing / Market Research

Hello,

How would you translate 'one good reason to buy will be more than enough' into Farsi?

There can be a hundred benefits of your offering, but
if there’s one concern or question which the customer didn’t get the answer for, they won’t buy. If your business pinpoints and addresses all the customers’ concerns and questions, one good reason to buy will be more than enough.