I understand what you are trying to get across here and agree with your point. Well, to a degree, let's call it a mathematical agreement. But as I said, it is pretty much the same when wannabe traders continue to add to a losing position in the hope of making profits in the future. Can it actually work out? Yes, it can. Does it make sense? It all depends. If prices go exponential in a couple of months, mining coins at a loss today may make perfect sense (again, all costs considered). So we are in a sort of gray zone here, when your electricity costs are still below the market price while your overall costs (including the cost of equipment) are higher. Do you think there won't be enough people willing to risk it?
Glad we're coming to an understanding.
What I was trying to say is that mining is a fixed game, a game of numbers and efficiency.
If the income is going down (not always because of costs but because of increasing hashrate) you can always just shut it down and you are safe, you don't have to bleed money, you know that at 6xxx you lose money at 6yyy you're making money.
Traders don't have this luxury. For them is gambling, they have to spot the events before they happen.
This is why I stopped trading after just a month, I don't have the time nor can I cope with the stress.
As for the people joining...damn I don't have a clue...
I always underestimate the risks people are willing to take in order to make money.
Also, if a mining rig cost you $7k while the current price is at $6k, whom are you going to sell it to and at which price? Only to the ones who are in that gray zone and who are willing to mine at a loss today so that they could probably reap handsome profits tomorrow. Basically, the same people I mentioned above. Further, selling your mining rig under such circumstances is like selling your coins at 6k when you bought them at 20k. It means fixing losses once and for all. Obviously, this is not what most people will happily do even though it may in fact be a right decision if the market outlook is all doom and gloom.
In my example I've talked about 7000$ fixed costs, the cost of running your equipment, not total costs which include the ROI of the rig or amortization, so If you thought I was talking about that then there is no point debating it.
When it comes to mining equipment, ROI and other stuff you have so many variables (like when you bought the damn miner) that is just too hard to draw a general conclusion.
One thing to add...
I'm so happy that there is still possible to have a discussion in the bitcoin discussion section