More than 24 hours betting without any reward, it really takes? Almost 10m ESP[http://imgur.com/a/E0EKa][/img]
http://imgur.com/a/E0EKaIt took me about 10 days for a chunk of 15M to stake

The reward was 88497 ESP.
I didn't had the wallet open all day though...
If you have all of your coins in one giant input then you'll be waiting. What I did is I split up my coins into multiple inputs and now I get reward daily.
Use the advanced coin control and select the large input when sending to yourself. Its described in more detail somewhere in this thread.