Trial Champions

So, Over the few years I have played this game off and on I've encountered one major problem for me, Champions. Its difficult knowing what champions to play,and being able to play those champions to atleast see if you enjoy their play style. I can't tell you how many champs i've bought and never played again,Even after my stock 3 refunds riot grants.

Now,I know riot has the free champion rotation,which is a great thing because you have a week to play new champions you don't own. However, waiting on specific champions you really want to try can take several rotations and potentially months to ever happen,which blows. Why doesnt riot have a "trial champion" system?

Such as A** 500-1000ip** or_ 25-50rp_ charge,for a ONE TIME full 24 hour play period with any champion you so choose. This way you can extensively play a champion you actually think you want,instead of free rotation champs that you have zero interest in at all.

This way the players who are new,or even veterans that have never played a particular champion can try the champions **without breaking riots business model. **

I personally think this would be an excellent and well-received addition to the game for all players and riot alike.

Looking for any feedback,or other ideas.