I just checked my coinhive account and I lowed balled it quite a lot I actually ended up with about 0.005XMR which is worth about 1 USD but thats still a fair bit less from what I would expect to earn from ads. For the 65%, thats fair enough, but at the end of the day its still a CPU miner which are notoriously bad at the best of times.

I mean do what you want to pay for the site but I just feel that generally they're not worth using because of the low payout plus the negative stigma that they developed.