True Balance must be a sin.

I've gotten bored of only seeing nerfs and buffs to mainsteam LCS status champions. What ever happened to Poppy, Shen, Malzahar, Taric Trundle, Urgot, Yorick, Zac, & Zyra? These are just a few examples of champions I personally don't see much of, if at all. Why is that? I keep seeing champions that LCS play, while the other champions rot in the background. Is it a crime to put effort to balance other champions too? Or is it just that hard to find out why they aren't played much and what to do with them? I have more fun playing champions that you don't see much of, but I feel that they just under-preform most games, so I end up playing champions I see a lot of just to win.

Besides gameplay, what about re-balancing IP costs for champions? An ever growing pool of champions should reduce IP costs overall. More champions? More IP to spend, not to mention players that need to set up rune pages still. You're lucky to save up for a new champ (6300 IP) in a week if you win most of your games. Buying every champ with IP will take several years for casual players that don't feel the need to pay real money on a FTP game and don't play 24/7.