There is no way that is going to happen, it's only growing, slowly but surely. I'd recon $70-80 by summers end.
You'd be stupid if you take your money out of ETH now, it's the biggest crypto platform with by far the biggest support.
Please explain to me what is a real currency?
I have not used the ETH to buy anything yet.
That's fair, ETH actually has a purpose other than being a currency, but I'm sure it can also be used as a currency just fine too if you want to. I remember to have "bought" at lot of ICO tokens for example. What's the point of buying things with a "currency" like BTC (or ETH) for example perhaps is the better question, do you like jumping through hoops, handling decimals and worry about how much will you have next week? No retail business (big or small) can work on that, that's why Bitcoin never catch on in this field and most likely never will. A currency needs to be somewhat stable to be used daily, weekly and monthly.
Is there any ICO now we can use ETH to buy?
Of course, there are plenty at the moment, many big ones are already finished though.
You can keep an eye of current and upcoming ones with sites such as:
https://icotracker.net/
https://www.smithandcrown.com/icos/
http://www.icocountdown.com/