For me I would recommend you to buy but it still depends whether you started before or just started this moment. Of you just started this moment, I definitely recommend you to buy now because this is an optimal starting point considering bitcoin is starting to rise from its downfall.
The current market value of the coins like that of bitcoin and ETH is getting higher but still, it is not that much high and that you can still buy the coins at much cheaper rates. However, you need to be sure that you are not making any decision like that of selling of your coins after buying your coins until and unless you are satisfied with the market value of the coin at that time and that you are getting enough of profit.