Been diving into Drew Vosk's mining analysis and honestly, the landscape has shifted way more than I expected. So here's what's interesting - the whole GPU mining thing that used to dominate? Pretty much done. Vosk actually came out and said it straight: GPU mining is dead. And the math backs it up. The few graphics cards that still turn a profit are pulling in what, maybe 24 cents daily? Meanwhile you're dropping $600-2000 on hardware. That's just not working anymore.

But here's where it gets nuanced. Crypto mining profitable in 2023 was still a real question, and Vosk laid out the actual viable paths forward. CPU mining got a serious look because the performance-to-power ratio is just better. Then there's the mining software angle - something like Evergreen Miner v2 running around $60 monthly, paired with rigs ranging from $299 starter kits up to nearly $3k for the Pro version. He specifically flagged the Starter Kit Pro for Chia mining since it stays quiet and doesn't cook your electricity bill.

I found the Helium section pretty telling. Vosk ran 18 hotspot miners and was pulling maybe a dollar per day total. That's rough. Bobcat miners like the Bobber 500 promised something interesting with 5G and LoRaWAN coverage, but the actual returns just weren't there. He lost faith in that whole ecosystem after dealing with Helium and NovaLabs, though he admits 5G mining could theoretically get lucrative if conditions change.

Now the ASIC hardware - that's where things get more serious. The Bitmain Antminer K7 sits as the second most profitable option after the KA3. The L7 hits about $10,725 through resellers like CoinMining Central, while the K7 runs around $5,728. Not cheap, but the economics work differently at that scale. Equihash mining for coins like Zcash got mentioned too, though Vosk acknowledges the criticism (people literally call it Z-Trash). The only real option there is the Bitmain Antminer Z15 from 2020, which is already ancient in hardware terms.

So is crypto mining still profitable? Vosk's take: if you already own equipment generating a few dollars daily, keep running it. Do the actual math though - electricity costs vary wildly by region. The real move is either building a rig from scratch if you're willing to learn, or if you want to escape grid dependency, solar-powered mining could work, though you're looking at weaker returns. The profitability game isn't dead, but it's definitely not the passive income play most people imagine anymore.