I think that stablecoins have a big potential. Many famous exchanges announces creating their stablecoins, like TUSD or GUSD. I think that whales have been waiting this for a long time.
It seems that falling price of solid coins turn the stable coins to have better future and have great potential. There many stable coins that really have potential and I guess its worth to invest in stable coins than to the unstable coins because I guess in stable coin you can control your losses.
When we say stable coin like USDT, it is not worth for investing because it is promptly a stable value of a dollar only, it is just like your money in the pocket not gaining any profit on it.