defenetily land-based ones , online gaming is not random at all , but rather controlled  from casinos server , i also suggest to anyone not to play server based-suport machines , my knowledge is in very high level as has to do about slot machines , so u better stay away from online machines, and generally online games. 

common sense says if anyone has something that works so far didn't sell it , not even for 300 bucks !

hi horus, u ve made a  really good work ,please go on!