Keep in mind that currently everything is speculative. Rvn main net will launch in the first week of November, then the real usability starts.
It's hard to identify true intrinsic value of cyrpto coin over time, but at least for now, I believe (based on my calculation) that Ravencoin has been a bit over-valued by Mr. market.
I don't buy RVN at current price, but I will if the price plummeted next weeks.