One may pay frequently in small amounts, while another may rarely pay but compensate with massive bonus rounds.
http://www.prepody.ru/topic76535.html
https://www.cqznl.com/forum.php?mod=vie ... 214&extra=
http://horsecity.ru/phpBB3/viewtopic.php?f=9&t=206829
http://forum3.bandingklub.cz/viewtopic. ... &t=1182950
http://horsecity.ru/phpBB3/viewtopic.php?f=33&t=208342
https://forum.arduionly.com.au/showthre ... tid=157053
https://mmomakemoneyonline.net/threads/ ... er.422093/
http://oldsite.giessen46ers.de/fantalk/ ... 3&t=174663
https://gravatar.com/cybera107e38ef9
viewtopic.php?t=85814
viewtopic.php?t=67644