Often they have extra goodies for first players, like starting with higher VIP levels or getting a lower wagering requirement.
https://teamaxg.com/showthread.php?tid=7920...=98986#pid98986
https://forum.pcfoster.pl/topic/135287-kasi...nning/?p=323965
http://www.gztongcheng.top/forum.php?mod=v...0051&extra=
http://www.prepody.ru/topic76558.html
http://www.lada-xray.net/showthread.php?p=220233#post220233
http://horsecity.ru/phpBB3/viewtopic.php?f=5&t=170496
http://1.s.2.free.fr/viewtopic.php?f=13&t=304037
https://talkingpoints.org/subx/showthread.php?tid=1407
https://gravatar.com/foxtenderlydbd25f7760
https://talkingpoints.org/subx/showthread.php?tid=48226
http://users.atw.hu/tunedthings/viewtopic....p=386447#386447
https://forum.pcfoster.pl/topic/111043-onli...maty-za-penize/
https://gravatar.com/freelystupendous9ae9cb4594
http://esca.altervista.org/viewtopic.php?t=6467
http://881.cz/forum.php?mod=viewthread&...8824&extra=
http://forum.spolokmedikovke.sk/viewtopic....7&t=1063799
http://users.atw.hu/tunedthings/viewtopic....p=391843#391843
http://kiteonly12.free.fr/viewtopic.php?f=7&t=57464
http://forum.spolokmedikovke.sk/viewtopic....6&t=1175644
https://soft-cs.clan.su/forum/7-1856-1#4001
http://gwenael.free.fr/diss3/viewtopic.php?f=8&t=35603
http://forum.spolokmedikovke.sk/viewtopic....1&t=1048210