As I think current bitcoin are priced high, you should not buy bitcoin now.
If we look at the things from one aspect, then it is not at all a suitable time for buying of bitcoins as the market price of bitcoin is at its peak value now-a-days. However, no one out of us knows the future market price of bitcoin.
There are chances that it will rise even higher. So, it is a big risk not to buy bitcoins. Fin my opinion, if you can buy bitcoins, then you should go for it.