Hello everyone, i wonder about is there enough people playing the game that make you feel part of a big community? İ havent bought security card yet even if i liked game very much. Thats because i afraid of the idea that i am gonna play with the same people all the time.

Enough people have bought L2 that you don't see the same people very often.
Even when there were only 500 beta players, it was a big enough group that every game was fresh. Now there are several thousand L2 players.
L2 is definitely worth it!