Did you study the trend? The only crash we gotten was the MTGox and that had to do with tons of bitcoins going missing. IF you study the trend where that has not happen you will see bit get a mass increase, then has rollercoaster price fluctuation, I say it can go to 4500 before it get to the next milestone, has been the same trend and if you think long term, its going to just go up, if you dont worry about the temp dumps.
In fact, I have been here since the beginning. First generation altcoins had their run and later they fell and consolidated: Litecoin, Dash... This year, these first coins together all the new altcoins like Ethereum, Waves, Monero, etc. ran again even harder. It's a cycle and I'm sure it will happen again as soon as Bitcoin top its current bubble like it happen in the past run from $100 to $1200
Remember, I'm not saying this is over, I really believe there will be a lot of coming runs, but always with its dips between them. Don't forget that Bitocin was almost died since it fell to $200 from $1200 along almost 3 years until it started to hype again.