I really don't think the issue is judging something based on revenue at all. There are numerous ways to measure the success of a product. It depends on what it

I really don't think the issue is judging something based on revenue at all. There are numerous ways to measure the success of a product. It depends on what it is meant to accomplish. The real point is: it does not matter what tools you use, so long as you are able to reach success (in any number of ways a person may choose to define it). You can obviously argue about which tools will best get you there, or give you the best chance to succeed. I've seen plenty of entrepreneurs or developers, use a tool 85% good enough, to hit a homerun. It's little different than a good plan executed today being better than a perfect plan tomorrow. I believe there are exceptionally few cases in life or business where the '85% good enough' won't do the job. I've yet to see the 100% perfection set actually exist anyway.