It costs 8000 (after 3% credit card fee).
Assuming a starting BTC price of $30,000, with starting difficulty at 1.4363, with both increasing at 4.4% per month:
Prove me wrong!
use a bitcoin standard.
S19 - $8000
8000/30,000 = 0.26 BTC
Power costs per month divided by BTC price.
$146.02 / $31,200.00 = 0.004680
$146.02 / $32,448.00 = 0.004500
$146.02 / $33,745.92 = 0.004327
$146.02 / $35,095.75 = 0.0041606
$146.02 / $36,499.58 = 0.0040005
$146.02 / $37,959.56 = 0.0038467
$146.02 / $39,477.94 = 0.0036987
$146.02 / $41,057.05 = 0.00355651
$146.02 / $42,699.33 = 0.0034197
$146.02 / $44,407.30 = 0.003288
$146.02 / $46,183.59 = 0.0031617
$146.02 / $48,030.93 = 0.00304012
$146.02 / $49,952.17 = 0.00292319
Total BTC accumulated/in cold storage instead of electricity mining costs after 1 year: 0.04860272
+ the .26 BTC you didn't spend:
End balance: 0.308602 BTC
Let's assume the S19 mines appx 0.025 BTC per month and that number goes down 4% every month.
Month 1: 0.025 BTC
Month 2: 0.024
Month 3: 0.02304
Month 4: 0.02211
Month 5: 0.0212256
Month 6: 0.020376
Month 7: 0.01956
Month 8: 0.018777
Month 9: 0.018025
Month 10: 0.01730
Month 11: 0.01661
Month 12: 0.01593
Total btc mined in 1 year: 0.2419536
-0.04860272 BTC in opportunity costs
End balance: 0.1939536 if you immediately sold coins to pay for electricity.
If you didn't sell your coins and because you paid the monthly costs out of pocket, same as you would for "buying bitcoin instead" (because you buy to hold & wait for appreciation, correct?) you would have .24 BTC in cold storage + 1 barely used S19. Value? No idea.
Let's say the value of the miner + hard to find cheap rack space with all in hosting fell by 50% due to a huge increase in available rack space and the chip shortages were somehow resolved. Demand is low because people are not interested in mining a $49,952.17 asset. Using your own numbers, if the person spent ~$150 to buy Bitcoin from an exchange where they would need to show ID, a face scan and submit KYC information, and after all of that, they would get appx ~0.003 BTC for their $150 monthly buy.
The miner can either continue to mine $795.73 (0.01593) worth of BTC for $146.02 per month or sell his miner at a 50% discount and buy bitcoin with it.
$8000-50% = $4000
$4000/49,952.17 = 0.0800766 BTC
0.0800766 + the .24 BTC you have in cold storage from mining = end balance of: 0.3200766
Not Mining End Balance: 0.308602 BTC @ $49,952.17 = $15,415.21806
Mining End Balance: 0.3200766 BTC @ $49,952.17 = $15,988.468
mining and immediately selling coins is a terrible strategy imo. this also doesn't take into account that there is no KYC on the bitcoin you mine. To get btc without KYC you usually need to use an exchange like BISQ or you need to use coinjoin to maintain a similar privacy profile which has higher fees associated with it.