And how you see it? network has hashrate in ~ 10 mh/s. The small growth rates price and coming the Chinese guys with scrypt Asic and they organize the fork for globalcoin.
This history is repeated many times with other POW coins. As a result, they have moved to the POW + POS or only POS. If not then they simply disappeared from the market.
Perhaps I shouldn't comment since I don't know more detail...but I remember reading somewhere of some serious problems with POS. Don't remember what it was but did make a mental note to avoid POS from what I read.
If securing the network is important I would look more at AuxPOW over POS....that or research POS in more detail to ensure it does not have some fundamental flaw.
Edit:
For me personally POS would be the most financially beneficial...but we need to look beyond personal gain and do what is best for the coin.