All of you who say one should buy coins instead of mining rigs...

Do you understand what you are saying?

I mean, do you really get it, what you're implying?

Even saying it's a conspiracy of corporations...

Mining IS Bitcoin. The reason Bitcoin operates, exists, is that there is processing capacity allocated to it.

If mining becomes a monopoly, Bitcoin becomes compromised, and thus worthless.

If mining stops, Bitcoin becomes unusable, and thus worthless.

If you do not think it's a good idea to mine, then you should be SELLING your coins asap, because you're saying the roof is coming down, and soon.