The price is getting increase too high just to get the benefits of getting free coins. those people who are invest i think they already sold their bitcoin gold from the market and invest it to bitcoin that is why the price is keep increase..
Since its attractable by other people expect that more people will invest to push the price more high..
And there are numerous both smart and just simply famous people who have predicted very large prices. That is bound to attract a lot of people who will want to try their luck with Bitcoin, thus driving up the demand of a very scarce coin.
I don't think it's just the forks, even though they surely play a role in the rise too.
But it's not clear that the current price rise is "too high" at all.