You can tell these have started getting dumped on the market recently.
What price? Also, my understanding is these can't mine ETH currently?
No eth but for now they do okay in eth classic until everyone swaps over and increases difficulty and dumps mined coins on the market since there isn't many practical applications for ethclassic in comparison to eth.
The above statement is my opinion on the future oversaturation on the lesser coins after 2.0 launches. Some coins might fair well though as they get attention such as conflux and ergo with actual use case scenarios other than just another blockchain. I don't know shit though, bitcoin in general is smarter than me.