I think that this is a good trading strategy , with some risk , but less risky than other pairs , as we know that ETH will rise once ETH 2.0 launches soon. I've put all my thoughts here:
https://youtu.be/VOWFFf3-oxcActually you can't buy Bitcoin cheaper than $13 except the price goes down
I can't see the video because slow internet here, but I guess you will exchanges your bitcoin to Ethereum and wait until Ethereum 2.0 launched and of course, will make Ethereum price goes up and exchanges again to bitcoin. But Ethereum 2.0 not give any guarantee the price will go up