Futures are the only possibility that a normal person has to operate with bitcoin indirectly, i mean, you are able to put long/short positions on bitcoin without using an internet broker.
this is only giving more trust to bitcoin, and a lot of people are saying that this is something damaging for bitcoin because walls street and so many other institutions are going to put their hands on bitcoin, but no, it is not a bad thing for bitcoin.
And of course not, i dont think that the price will fall, if you are an early adopter, you should know that a real decrease is just a 40 or 60 percent, not just a few hundreds or a little bit more.
Anyway, my bihest concern is if the price of BTC will drop in next 30-40 days,
Invest the other ten thousand before it goes up to $20000