Just like the others said it is a best opportunity to invest due to its progressive state that surpassed the expectations of other people. The value of bitcoin is still rising so, why not try to invest? Maybe the value can go up to 4k within next months. 
This can happen since it already surpass 1k ,3k more to go which can happen since bitcoin value now is really increasing unexpectedly, we can't really tell what might happen next.$300 doesn't look possible to me at all. Even with all the uncertainty around hard fork, we still have come so far.
Only if a major bug in Bitcoin's code is discovered and people lose money, will we go to sub $500 levels.
i don't want to go into sub $500 levels and i think the other don't want this is happen too. but if something happen, then it is possible that bitcoin price will be fall to the deep and if this is happen, then many people will be sad. we are hope that bitcoin price is increase or at least bitcoin price can stable in one range.
Anything is possible with the price of bitcoins either it can go higher or lower in future but looking at the demand of bitcoins we can be positive that price will go only higher in long term and even if it falls it will be temporary and price will recover after that.