My advice would be to not have all your eggs in one basket. The only reason you're questioning this now is because of the surge in bitcoin. 2 weeks ago you'd probably asking if you should get out of bitcoin.

Like any normal free floating currency you're going to have peaks and troughs. So its best to diversify and choose a basket of coins that you believe in.

If you want to lean to one coin slightly over the others because you see more upside potential that's fine. But if you were fully invested in one coin and it crashed tomorrow you could potentially loose a lot of money.