How about this for an improvement: BTC mining vs. BTC possession. Moreover, what is the reason?
In other words, if I had a 40k right now, should I buy a model such as the Antminer L7, for instance? Purchase a single bitcoin, if that is your preference.
You should go for buying Bitcoin because price of Bitcoin isn't so high at this time. It's a great opportunity to buy Bitcoin with lower price. Mining Bitcoin is costly because you have to pay for electric bill and components for mining. Better, buy Bitcoin and wait for some years to get good money.
Simply saying that ROI is really much longer but if you do like to complicate things or do really have in passion on dealing with mining then you could also choose it out but if you dont like the hassle and other factors
to be mind off then you could simply buy a whole bitcoin which you do need to add up a little bit since 43k price as of this writing but if you do like to hassle things up then choose on buying a miner
but you should be considerate on other factors which like on electricity cost and others.