To all who say that BTC rising - yeah, but it also quite unpredictable and fast. I mean, over the few hours BTC raised to 8300$ and then again fell to 8000$. So I would recommend holding your XRP and buy BTC only if you'll see it raised quickly.
Looks like you don't have to sell XRP just to buy bitcoin whose price is going up. Because almost every time there is a movement in the price of bitcoin goes up, then altcoins like XRP also go up. As happened yesterday, when bitcoin prices reached ± $ 8,300, XRP prices also moved slowly. Conversely, today XRP also fell after the price of bitcoin experienced a correction.
Bitcoin fluctuations are very fast, so in my opinion it is very risky to sell other assets just to buy bitcoin because we don't know the extent of the increase unless there is a factor and good news about its development.
Yes, for the current situation there is no point in selling XRP to buy bitcoin because both are down and if you want to have bitcoin, you can make purchases with money without having to sacrifice XRP because the current bitcoin price continues to decline and currently the price of bitcoin is around $ 7,930 it is an opportunity to buy it and according to your ability before the price rises again.
XRP is one of the potentially profitable altcoins to own and if you have both, it will be much better and when both of them increase you will get a very large profit.