What are you, a publicly traded company? If cash flow is not an issue, would you rather spend $500 a day and make $1000 revenue, or spend $10,000 a day and make $11,000 revenue, if neither are scalable beyond those limits?On another note keep in mind that everything is subjective. Money amounts can be deceiving.
If you spend $10K in advertising getting $1K profit you are doing much worse than a guy spending $500 in advertising getting $500 profit.
What you need to be asking is about ROI not end result.
I'll go for whatever return I can get, cashflow permitting. With weekly wire-volume and high credit limits, nobody should be concerned with ROI - ROI (or more appropriately, ROAS) should only come into play if you could be talking that money and putting it into a better return vehicle.