"We can devote $x resources on XYZ and make $75k profit, and spend more time and money to figure out how to grow it, or we can spend that $x resources on ABC, make more than $75k from that resource expenditure, and not have to invest more time/money to figure out how to grow ABC because it's already growing (either because we figured it out or we'll figure it out along the way)."
Yes there are plenty of ways to grow a product, but how much time/energy do you justify on learning/testing when you've already got other products that are more profitable and growing?
That said, the original post still focused too much on the feelings of the devs/peeps involved and didn't seem to address things from their customers' perspective. They addressed that in another reply to my earlier post, but it still set a bad tone to me off the bat.