This is good to be listed on this ICO pages for advertising but never pay for such listings because lately a lot of this services started to scam ICOs. They list your ICO and ask for money to change the listing rating to a higher one. This is just insane. Price depends from a service growth if they are big enough then you can await a lot higher fee.
Thanks for the heads up. Actually we have been bombarded by ICO listing sites but we dont really realy on them. Most of them would promote any ICO for money. Also they would give you 5 star ratings everywhere if you pay the minimum fee for that rating....