There are lots of BTC users that migrates to BCH, but no BCH users migrated to BTC. WHY they stayed to BCH?
Simple, because BCH is more capable than BTC though in fact is a fork of BTC. BCH has a lot more advantages than the BCH which makes it as a future money someday because of its attributes.
BCH Advantages:
1. BCH is FAST
The Bitcoin Cash network can handle many more transactions per second than the Bitcoin network can. It can do 100 transactions per second while BTC can only have 3-7 transactions per second. that was way too fast than BTC.
2. BCH is much cheaper than BTC
Bitcoin Cash has cheaper transfer fees (under $0.01 per transaction), so making transactions in BCH will save you more money than using BTC. BCH is under $0.01 fee per transaction while BTC has $5-$50 per transaction.
3. BCH is now much broad than BTC
While transaction speed is greatly increased with BCH, the larger block size also requires more processing power for nodes to support the blockchain network. As of now BCH has a $100 trillion Coin Market Cap while BTC has only $10 trillion Coin Market Cap. BCH is growing fast and that is a GOOD NEWS.