Actually yes, this is the right time to buy whether bitcoin, ethereum or altcoins. What is important is that coin belongs to decline situation. Buy now as long as you can and especially if you have enough budget to collect some promising coins.
Let me tell you about the current situations which do not show the market as favorable one near investors, those who have invested are upset. It does not mean that the market will not recover but can increase anytime soon so whatever you are thinking is on own places but the benefit at this stage is to invest in the market because it will cost less for more coins which is a benefit in the beginning too.