The price continues to go down!!!
Is there a specific reason for this?
as I think, tier 1,2 already x4 with this price. so there is no reason to keep them
No reason to keep them?
You clearly don't understand coins and their value, especially ones with projects behind them. The best one for you is BTC, pure speculation.
All the coins with real projects behind will dominate after bubble will burst and esppecially after projects come to life.
Qsp is one of the coins that hold real project behind. If you can't recognize that value in it is not for you.
All off us seeing the potential just hold and buy more on opportunities like this, when the price is lower due to ETH rise.
My 2C and I have plenty of QSP in my portfolio.