rush21hit :
Us mere mortals wouldn't have an R9 290X level of card lying idle. Heck, suppose we do have unused GPU it would be something from 2 gen before it and a mainstream oran entry level card of its time at that, at the very least.
I think you read this wrong. I didn't write this saying "These are the exact steps and parts list you need." It's simply saying, "Here's a basic idea you can possibly adapt to your own circumstances." No, not everyone has a 290X in storage. But a lot of people do. My current "leftover" GPU is an R9 280. That's plenty strong for some hobbyist mining.
rush21hit :
So suppose anyone does have some mainstream or high level card at least the level of HD5850, as an example, they'd still faced with power bill issue, which in some case outweigh the profit.
All of which I cover fairly extensively in the last page, or did you not bother reading the whole thing?
rush21hit :
As we all know how much of a sucker old gens are compared to what we have now. That is assuming they are somehow emotionally attached to it and not decided to sell it, even after buying later gen.
You're attributing much too broad a brush to people. There are plenty of reasons to keep around leftover computer parts, other than sentimentality. You might want a backup incase your new hardware gets damages, is a lemon, etc. You might hang on to some stuff because you've got friends or family that might want it when they finally decide to ditch their current dinosaurs.
rush21hit :
This article still has a point. But a very unlikely one.
Never said it didn't have a few restrictions, was only saying it is possible.
Neuspeed :
This article didn't address the mining difficulty of Ethereum.
Actually, I did talk quite a bit about the rising hash difficulty. Did you not read the last page? Did you not see on the front page where I talked about the ballooning DAG files making it harder to use older mainstream GPUs ( since most of them are 2GB VRAM or less )?
Neuspeed :
At this point, is not a good idea to mine ethereum unless people have hash rates in the GH/s or at least MH/s.
You don't need a GH/s rig to do it, as I've already demonstrated. It may not be hugely profitable, but you can make a little at it even using something as lowly as a 4GB 1050 Ti.
why_wolf :
As with every gold rush. The real profit lies in selling shovels.
Too true. Just ask Sylvester McMonkey McBean.