When people ask me "Should I buy in or wait", my reply is do some homework, learn about Bitcoin, and then when you feel comfortable, pull the trigger. Trying to "play" or "time" the market is guarenteed to leave you with less bitcoins than you had or you could have had.
Go with your gut. When your gut says do it, do it. And then don't sit there and stare at the price every hour, day, etc. Just let it ride and come back to it at a later date (a year or so?). There's no right or wrong here. And if you go with "coulda, shoulda, wouldas", you will give yourself an ucler.
+1
awesome answer.
I will only add, don't invest more than you can afford to lose, because tomorrow, it could all go to zero.