Is it still profitable to invest in mining equipment rather than invest directly in the currency I want, such as ethereum for example?
A friend told me that in view of the increasing difficulty, it was better to buy cryptomonetary units directly than to invest in equipment ...
Apples to oranges really.
I'm sure it's been talked about on here a ton but just looking at the basics
investing is crypto is just that - price goes up from your buy point, you make BTC, Price goes down from your bp you lose BTC (if you sell of course) - very cut and dry.
with mining equipment it will start earning back your ROI - and you'll be able to hedge and recoup loss if things go south by selling off your hardware, most likely and hopefully not at a huge loss
Just my 2c