The bubble already burst. 19k down to under 7k.
Making money in mining has moved away from the home users. You wont make your money back fast enough unless you are running over 100 miners. The days of milking a single unit for silly profits is over. Its now a quantity over quality game.
That is price burst, not mining profitability and overcapacity. But I agree with u that the war and pain has begun and big farms with rental/staff cost will probably need economies of scale to possibly survive. I also agree with bloomberg that even big farms can go down since they do have rental and staff cost. I would say a home miner with 6 cents electricity still has it better than a big farm with 6 cents electricity as home miners have no rental/staff cost.
Biggest problem - mining difficulty and overcapacity of asics:For example, if bitcoin spiked 50% to 12,000 USD now. Asic manufacturers such as bitmain will take in 3 months worth of orders. They will deliver these orders in the next 3 months.
This is why mining profitability went from over 1000 USD a month for the S9 in Dec 2017 to about 200+ USD in January 2018.
Bitcoin price dropped 50% from 20k in Dec to 10k in January but profitability dropped by 70+%. It gets worse as more asics are delivered in Feb and March.
S9 were sold for 5000-7000 USD in December on Ebay but is worth under 1000 USD now.
Timing of miner purchase:Even at 6 cents electricity, if bought an L3+ at 1500 USD in Dec 2017 to Feb 2018, it will take over 20 months to break even now.
That means never. U can get an L3+ now for about 400+ USD now and it was 200+ USD (with coupons), in the past.
If a more efficient machine comes out, it can unprofitable for L3+. There are big farms at the marketplace section wanting to sell a few thousand S9, at far higher prices than that for a new S9 now because they bought their stock at higher prices.
Hence, time your purchases properly.
ConclusionSo, be careful guys, even at cheap electricity, u CAN lose money.
In my local area now, the highest cost home miners are selling GPU and asics en masse. There is alot of pain there.
DO NOT spend money u cannot afford to lose.
DONT take a loan to buy these things.
The lower cost home miners and commercial miners are not doing so well either, but surviving. Some of these asics will never break even though.
Do not depend on price spike upwards to mine more profitably because the moment it spikes up, millions of dollars of asics gets ordered and the first asic batch can be delivered in as fast as a week now.
Another problem as bloomberg pointed out is that if it consolidates into a few big miners, the prospect of a 51% attack becomes bigger. If such occur, bitcoin may be worthless. However, this still seems like a far off possibility for now.