Owner Carry v Conventional

[James Edwards]

Curious as to thoughts on owner carry v conventional financing. 

It has been my understanding that owner carry is typically something a buyer does when they have insufficient credit, or ability to qualify for a loan. It is something an owner typically offers when they want to get a higher purchase price for a property, or sell a property that is unlendable. 

If one can qualify for conventional financing on a property, does it make sense to do an owner carry? If so, what circumstances? 

The only thing I could possibly thing of would potentially be aggressive expansion. Ie if sellers will do it, one could potentially get into several places for a smaller down %, instead of paying 20% every time for investment property.