BCH is more technologically sound than BTC, there is no point in denying this. But people hold BTC because of its ability to rise and bring profits. How good the technology is often matters less to investors than how widely it is adopted...
How is it more technologically sound? It's more than likely over 90% the exact same code, so that's up to personal interpretation on whether a hand full of small changes (already pioneered by other coins) suddenly makes one more sound than the other. I almost want bitcoin to scale to larger blocks just to shut people like you up until we can find a actual viable solution.