Now that c32 ASICs are readily available, there’s no reason to buy GPUs for mining Grin. Buy from iPollo directly if you prefer PayPal, Nhash if you prefer USDT/Tether. Their pricing schedules are exactly the same. Nhash provides faster communication. When best pricing is considered, G1 versus G1-mini are the exact same price per hash, at least when I purchased. Go with G1 if you have 30A 220V, otherwise you’ll be dealing with a lot of Ethernet cables and PSUs during deployment. Go with G1-mini if you want significantly quieter (running within home) and more flexibility in cost and placement (only 85W each on average). G1 takes up 12.5A on a 30A circuit (limited to 24A because of 80% rule), & best price is currently $23,999 as advertised from Nhash.
I’m a fellow miner that’s GPU mined Grin since genesis and have purchased the following Grin ASICs:
G1-mini first batch from iPollo direct through this forum campaign x5
G1-mini through Nhash x20
G1 through Nhash x1
Will bundle more Grin ASICs in the future when iPollo releases their BTC & ETH ASICs.
I’ve only had 1x G1-mini DOA (foul smoke on each power-up, no hash but was accessible through admin panel) and Nhash promptly shipped a replacement in advance without additional payment or RMA. I’m awaiting RMA instructions for the DOA unit.