As others have mentioned, ETH mining is dead. When Scrypt ASICS came out, regardless of expense Scrypt mining was no longer viable. Yes, immediately. I was there, four years ago.
Also the poor ROI for most of the cards mentioned in the article will not appeal to seasoned miners. Look, the only way to be profitable right now (and its not good) is to mine another coin/algo with energy efficient cards. Right now, I would tell anybody wanting to invest in this--DON"T! Even Ethash will suck with the ASICS after awhile.
People need to understand that ETH is moving to proof of stake-no more mining for anyone. People putting in pre-orders for Ethash ASICS are going to lose. Big time.
I would say if you want to get your feet wet, look at cards with a quick return on investment . Such as RX 560, def not a serious hasher but very efficient, and reasonable ROI. Even better, R9 270Xs hash Zcash at 200sols/s which considering power draw is not bad. 270X cards go for around $100 on ebay.
I suggest that it would be wise to research more efficient cards, and take a look at other algorithms. Since you love nVidia so much, Zcash is a good place to start.