thing is you dont need any other characters
i personally cant be arsed making a different character for everything just cos it's gonna be like 20-30% more effective at that one specific thing. if i started playing hardcore again i probably would, but even then i wouldn't make a sampire for crowds anyway, wither is better imo. maybe for peerless, but then isn't a tamer with a G Dragon gonna be better anyway?
when you take that into account, the reason for playing sampire is more because you want to play a warrior, and if you're playing something because you want to play it, why not play the warrior you want to play? if you can actually make it work.
i think if you're playing any class just because you think it's the best class, you're doing it wrong in the first place, people dont generally do that. they pick what they want to play, from the classes capable of doing that thing
edit; well actually i guess people do generally pick classes because they think they're the best, but they keep playing them cos they like them, their brain just thinks it's the best cos they do better with it lol
game is full of variables at the end of the day tho, like, shit varies lol