Reading people moaning about how they missed out on selling at 50 BTC/ZEC reminds me a lot about people who also whine about not holding on to this or that collectable; baseball cards, beanie babies, etc. The problem is if *everyone* held on to these they would not be so valuable. Same thing with ZEC. If everything was working perfect and pools were paying out, the price would have plunged even faster and you would have still only been able to sell at 10 btc/zec, 5/btc/zec, or whatever you ended up with.
You might as well bemoan the fact that you didn't pick those exact wining lottery numbers after the drawing has already taken place. And if this explanation doesn't satisfy you take comfort in the fact most of those crazy high early trades were fake with speculators trying to establish an early high price and buying into their own sells. Sorry Sunshine, no one actually bought at 3,600 BTC/ZEC and gave someone else an instant ROI mining farm.
True. What people also don't get: Despite the 3,300 BTC/ZEC, the total available coins were just a fraction of one ZEC, so pretty much nothing was sold, i.e. no volume.
As you say, these stories about ROI entire rigs or farms is utter bullshit.