Oh boy, here we go again with these types of posts.
Someone else already did it earlier, but let me quote the relevant portions from your post that even make mining remotely a good idea:
In case you decide to hold 1 year, and current price doubles, here is rough estimation:
I considered these prices in 1 year:
Price ETH : 540$
Price RVN: 0.12
So telling people they should get into mining because the price might double within a year is pretty silly when they can simply buy some coins outright and double there money in that same time by simply doing nothing but holding. No need for all the GPUs, high electricity bills, heat, and noise that go along with mining.