I am also up to stake my ETH when they change the algo later. There is no announcement yet about when this will happen but I've heard the casper is still in the development stage. If you have any information, can we stake even if we only have few ETH like about 20 ETH? I don't have much really and that is just what I have kept in my wallet.
There was an announcement regarding ethereum POS update but it gets a nother delay and it will be implemented after byzantium update and you can try to see that on the any crypto site news and i guess you will get a lot of clue about when that will be happening in the future. Or try to see that through use EIP1011 link
You think it will take another year or two before this will happen?
I think a lot of investors are already buying ETH because they knew they can stake which they won't need the mining rigs to earn ETH by the time its implemented. I'm up to buy more if required but I hope my stash is enough.