If it was a good idea to do X, then it's a good idea to do Y.
When this statement is true, it's almost irresistible. Not the obvious similarities on the surface, but the deep comparisons, the resonant influences, the patterns that a trained insider sees.
That's what makes a VC or an HR person appear to be a genius. They find useful patterns and they match them.
The problem is that marketers often force the comparison, because we're so eager to get people to do Y, our Y, the Y we have in hand. So we focus on the surface stuff, insisting that people follow the obvious pattern from their X to our Y.
Instead of running around with your product looking for customers, perhaps you could figure out who the customers are and build a product for them instead.