If Riot really wants me to spend money on icons and neat stuff, stop taking the effects away.
The URF finishers. The Poro King poros (Although they're at least coming back) The World's Team Icons PROJECT icons/skins. Pool Party Minions And now the Fire/Ice Icons.
Why is it that whenever we get something like this, it'll exist for a patch or two before being disabled? Would it really be so bad to let us have project minions spawn so long as we have an all project team? Is it really so detrimental to have pool party minions optional if we have a pool party group going? Why can't our poro icons alter poros on the default howling abyss?
If you want to keep offering stuff like this for 250 RP, make it permanent. There's little-to-no reason why we can't have this sort of thing happen all the time save for some secret code problem I'm unaware of.