Just wondering when everyone buys bitcoin, weekly, monthly or just on the falls? thinking of setting up something regular to ride out the waves..... 
The price of bitcoin is the most unpredictable thing in this world.Because of its primary characteristics no one can tell what will happen with except rare cases (such may be halvings). It is decentralized (so no one can take care of it to help in achieving the staying in a given level) and is yet child (and is such is "capricious" and do what want; if old and mature will be more restrained and cannot go so fast up and down without any kind of rule). Having those in mind the only thing that can be made (at least that is what I do) is to buy every day on every various period little quantity of it. In this way you will not "feel" the costs and will have always more an more.
that the price of the bitcoin will be atleast upto the 800 dollar at the end of this year.
Yeah buying now sounds good as price is not too high at a moment if we take future price into consideration as price will be on the roof in future.
Majority of people feels that price is too high at a moment to buy bitcoins, but if you keep in mind the future of price of bitcoin then I think its too low as price will be really higher in coming years.
it may be higher than a while back but it is still low for bitcoin and it should be a lot higher. and soon this will happen. the halving and the rewards that got half of before now is going to change everything in the market and then raise the price slowly.