[1]https://www.thedailybeast.com/where-did-wikileaks-dollar25-m...
Yes, you could have made a lot of money with bitcoin, same of you would put all your money on 7 black in roulette. Hindsight is always 20/20.
Now you're dangerously close to figuring out that you can make more money by waiting for the best time to clear the block.
Once you've crossed that bridge, if your business has any margin at all, it's not hard to imagine that keeping some of the exchanged crypto currency back from each clearing block until the next block, or even longer, during any bullish run (that we've seen on more than one occasion) can result in a measurable margin increase with a fairly low (or at worst, quantified) risk profile.
Not sure what my point was really — that's just about exactly how this plays out.
https://www.theverge.com/2018/1/24/16930010/50-cent-rich-bit...
In terms of what you might have made, there is no difference between 1) accepting Bitcoin as an experimental payment method in an existing business; and 2) accepting cash as usual and using that to buy some Bitcoin as an experiment.
What would have been much easier is 3) buying some Bitcoin as an experiment outside of the operation of a business. Because you wouldn't have had to worry about how to handle it in your business accounts, or set up an automated payment flow for it, and so forth.
You might as well be asking "I wonder how much people made from the Bitcoin rise".