"ip cost has no bearing on the strength of a champion"

They aren't. Quinn, Jayce, Kha'Zix, Aatrox, Syndra, Zyra. Do I need to list more?

Free

the most played adc isn't 6300, most champions usually get bumped down by 1 ip tier everytime a new champion is released.

Rofl...that's not even remotely true. Also there are plenty of cheaper champs that see regular play in the pro meta.

remember when zyra was in the meta? good times

There are like 70 champions that cost 6300 IP...

123 champs in the game. I can't win because I don't have X Champ!!! QQ

I didn't know Zac was meta...

garen?

Because and aren't top competitive picks at all... Because isn't a top pick right now... Because aren't strong at all right now...

Now, 6300 IP champions that aren't meta (not saying they're not good, just not common):

the only thing IP cost tells you is how new the champion is