Russia have population (142,856,536)
Russia have money (3-4 millions € for the big three : VVA-Podmoskovye, Krasny Yar, Enisey-STM)
Russia have good domestic teams (the big three it's level ProD2/Championship)
Russia have good players (Gresev, Ostrikov, Artemiev...)
Like for Georgia, here is a list of Russian players :
2d Row :
Andrey Ostrikov (Sale Sharks, Aviva Premiership) - 24 yo, first season at the higher level, after 4 years in ProD2
Adam Byrnes (Melbourne Rebels, Super Rugby) - 30 yo, 28 Super Rugby games in 3 seasons he played 2 season for Leinster too.
Kirill Kulemin (Castres Olympique, Top14) - 31 years old, he played more than 100 games in Top14
3d Row :
Viktor Gresev (Nottingham RFC, RFU Championship) - 25 yo, he just signed for Nottingham after an impressive RWC : man-of-the-match against Australia and Italy
Scrum-Half :
Alexander Yanyushkin (VVA-Podmoskovye, Super League) - 29 yo, the little scrum-half have a big talent!
Fly-Halves :
Yuri Kushnarev (Melbourne Rebels training squad) - 26 yo, he made the pre-season with the Rebels and will play probably one year in Sidney
Konstantin Rachkov (Stade Phocéen, Federale 1) - 31 yo, he played in Top14 and ProD2 for Montauban, Lyon, Tarbes and Aix
Wings/FullBacks :
Vasily Artemyev (Northampton Saints, Aviva Premiership) - 24 yo, the former irish international (U19) scored 7 tries in 10 games for Northampton this year!
Vladimir Ostrouchko (Enisey-STM, Super League) - 25 yo, 2 tries in the World Cup after only 1 season in Rugby Union. For the next season he returns to 7 but continues to play for Russia rugby union team
Denis Simplikevitch (Enisey-STM, Super League) - only 20 years old he made a good RWC with to tries scored against Ireland and Australia. London Wasps have an eye on this guy