$400 seems easy as we have seen people talking $500-$600 ranges possible in next few days...
But always remember, I have experienced it here and would like to share that whenever we start talking positive, we always see a negative effect of it on price of BTC...
So the price is really loosely related, if at all, to what appears here in the speculation section threads.
If getting to $400 and beyond is easy? Well, I wouldn't expect it to be so easy as three weeks ago when we got the momentum. this time it will be much harder (look at the volumes, in these exchanges that have fees) and I don't expect big moves in what is left of 2015.