the coin price are too high these days...
Uhmm...That's kind of the point. If it's a "cheap" coin then it's like the other 50,000 coins out there. Meaning, it ain't worth crap. To be a useful coin, it has to be worth something. At this point, I can make more money with my empty beer cans than 99% of digital currency will get me. (I do recycle them, I don't save them up for money)
Or do you mean like stocks? Yeah, everybody wishes they bought M$, Google, Apple, way back when.
I'd say most coins are cheap. Most will stay that way because that's what they're are worth - nothing. Some coins should do well, meaning they WILL cost more, meaning they will also be worth more. There aren't many I see that happening with. I think calling DNotes "expensive" is actually a good sign.