...I was shocked to see the value of my GHS...
Since it's not profitable to mine (it would generate you net loss) anything above zero seems a fair price.
Cloud mining on other sites is still profitable.
Yup, but you can't transfer your GHS from cex to other sites. So if on cex fees>income, I don't really get why would anyone buy such at all, I guess it's all about the hopes the diff will go down, fees will be reduced and/or BTC price will rise.