Though this thread has been created in March, the topic is still opt to current situation. The first half has been in favor to buy more bitcoin as well as other altcoins. Current rate is not high to avoid. Chooae the best altcoins listed on top in coinmarketcap.com. I would say anytime is the right time to buy crypto coins. Be ckever and invest in many altcoins instead sticking with one or two. Thia would be a wise move as a investor.