I think this is more less expensive rather than using tons of electricity to get coins/tokens.
Sadly your comment passed unnoticed. There are some good PoS coins, its not cheap to run masternode, as I remember if you wish to run masternode for dash you need more then 100k starting investment. For some other good coins, lets say good PoS coins, you need at least 10k dollars. With that money you can think about buying mining equipment, but you need to calculate other expenses too, like electricity on the first place and of course free space if you don`t have any empty room for that. With PoS coins its easier, just wallet and coins and you are good to go.