LoL struggled greatly to get a place in the e-sports scene, and it will even further when Dota2 comes out.
When LoL was first released along with HoN, people wanted to push HoN as it was viewed as the better game and more competitive in terms of game play, which IMO it actually is by a large margin.
Over time due to their excellent free to play model and consistent support LoL has become more and more popular and it is due to this rise in popularity that it is slowly finding a secure place in a lot of competitive scenes such as ESL and MLG etc etc.
Many of the pro sponsored teams were only in HoN, and are now debating over migrating to LoL or Dota 2. Problem with migrating to LoL is the way it is heading is making it almost a different game to Dota, so while popular, mechanically it really is the inferior game for esports.
Numbers and popularity however are extremely important, and should LoL keep its numbers high when DoTa 2 comes out it should cement its place in esports calendars. Until then however, it is in my opinion, always struggling to hold its place.
Hope that explains my logic to you :)
Have to say I completely disagree with your statement of LoL struggling to gain a place in e-sports. It has more than gained a place in e-sports at this current moment. I highly doubt Dota2 is going to knock it off at all.
Interesting article! Valve ftw as per usual.
Possibly the biggest hope for e-sports in the near future - really looking forward to it :)
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