Cash flow for me. I love the residual income model and it's how I've 'lived' for almost 20 years. And if we are increasing our customer base every month and still provide massive value to our current customers, the business thrives.
Awesome topic though man, great points on both models.
Cheers man, yes, the more I think about it and see more and more entrepreneurs adopting both models, I personally find the cash flow model more compelling. You can stack the income and dip in and out of the business as much or as little as you want - and it remains as your "cash making machine".