I think maybe this is the right time to buy bitcoin and some altcoins that have good progress because the price is currently declining and this is certainly a good opportunity to invest in both.
I also have Bitcoin, I think it still has the power to command the market a price. I'm planning to buy WAVES, I think it has a potential among other coins.
I think considering today the GAS has given the good movement and I was observing it form couple of days and this coins look good for another couple of days. If want to only trade for couple of days, I think GAS could give a good upside and one can easily make some profits in this. It can fall back again after providing some rise like it happened in the last rally.