Is it a good time to buy a mining rig?

Is it a good time to buy a mining rig? Time is not the issue.

Cost is.

How much money you spend on it compared to how much money it will make. This almost always stays the same regardless of how the exchange rate of cryptocurrencies changes.

If you bought the ASIC in 2017, it will pay for the ASIC in about 2018 or 2019. If you buy an ASIC in 2019, you will recoup the cost somewhere between 2020 and 2021. Even now, buy ASICs immediately – it will still take an estimated 1 to 2 years of mining to recoup your money.

So is now a good time? No better than the last 5 years. It’s roughly the same.

If you can find some ASIC or GPU mining equipment, it’s inexpensive compared to the revenue it generates. Let’s say some 12-card RX 570-8GB ethereum miner for under $6,000. Then yay! Awesome! You will recover the cost after about 6 months of mining. Buy it now when you see it, because others will keep bidding until they reach a year or two of ROI.