Let’s suppose your customer knows what you know. Would you trust them with the decision to buy from you?
If not then why not?
Is it because you don’t trust in your offering or because you don’t trust in your customer to make the right decision?
If it’s the former, fix your product.
If it’s the latter, try empathy. How does the right decision look like for your customer? Why wouldn’t they choose you? Could it be that they are right in not choosing you? Or could it be that they would choose you but you won’t believe it until they actually do?
The best marketing starts with trust in your customer. If you lack that trust, the best investment is to figure out where that lack comes from so you can adjust accordingly.