You invest your time and are rewarded with monies
We invest our time and are rewarded with monies which we then invest in equipment which we are rewarded with monies.
The differences are legion and completely obvious.
A 50k job is judged by the employer to be 50k worth of useful work to the company.
If I stop working I stop getting paid.
I can't award myself a pay rise, I can only ask for one and would need to justify it to the company.
I can only take one job (probably).
The work obviously benefits the company/someone other than yourself
In your case you can take as many GPUs as you can afford now, and add more in future.
Each of them makes money and there is no work beyond the initial setup + monitoring, occasionally choosing to mine something else.
You can keep adding more cards to make more money and there is no cap to your earnings this way, nor a cap to GPUs bought, over and above self-restraint
You yourself aren't doing any useful work, arguably neither are your GPUs (unless waste heat is used to heat room)
You haven't leveraged any useful skill to make that money (beyond opportunism)
Let's face it... earlier in the thread it was alleged that people doing a 9-5 job are "mugs" if they had a chance to make money an easier way. So
clearly, cryptomining isn't at all similar to a regular job. And clearly cryptomining is an "easier way", that just involves having sufficient capital and a lack of care about the consequences to take part in.