-Snip-
I think this is not a good idea at all, for those who believes in Bitcoin, then you can accumulate more but it is not right to exchange all your altcoins to Btc, as altcoins will declined too and legit project could stop and end what they are doing, there's a lot of project just like Eth and XRP that should be invested too as they are helpful in crypto economy.
It's better to accumulate bitcoin using another funds and not to convert your alts assets to hold, if you dare doing that since this thread has been
opened surely you regret the move as bears trend hits bitcoin. Avoid to make decisions without supplemental guide or patterned that will lead you
to much lesser risk type of investment, find time to pick or look for good alternatives since the market is red right now.
Alts can bring good bounce if you do research not bitcoin alone but also those quality projects from CMC.