We need more items with trade offs and different variables

Most every item in the game just grants you positive bonuses of some sort... Boring.

Why aren't there more items that give you bigger boosts but have a negative trade off? This would lead to more specialized builds/play styles instead of the same generic builds for various roles.

How about an item that gives you a lot of armor, but lowers your move speed? How about an item that gives you big cooldowns, but reduces your health?

What about items that might give big bonuses but disable a summoner spell?

What about items that temporarily increase your field of vision?

How about items that temporarily increase your range?

What about an item that boosts your stats while around minion waves so there is a play style where sticking near minions would be advantageous but getting caught out away from them would lower your stats?

I just want to see some interesting items where people have to consider upsides AND downsides.