if you want to invest in bitcoin, don't look at the value just invest, don't be fooled by the market swigs, there are only two things to do with bitcoin now that is buying and holding
keep buying no matter what the price it, and hold the rest, if you want to make more bitcoin from the one that you are hold, invest them in some other things like altcoin that have a great potential or mining
actually i never bought a single bitcoin, i like to generate them via mining, it's more anonymous for me, and more profitable, even if it's slower
Same thought here, I think if you really want to have an investment. To it today, why because you can't never say that there is always tomorrow. What if something tragic happen, you lost your chance to invest. Or what if the value of bitcoin suddenly goes up and you cannot afford to invest anymore. So its a big regrets if you not try it now.