[{quoted}](name=Zombie SIayer,realm=NA,application-id=3ErqAdtq,discussion-id=ljws1cU7,comment-id=00010000,timestamp=2016-08-09T19:24:31.190+0000)
That may be however, if they're going to setup an entire event which requires buying with RP/IP you would think they would include decreased chances of getting skins you already have so that you can use your cores.
What if they did? What if you just got extra unlucky? Would it make you happy if Riot told you "You weren't just unlucky to get a shard for a skin you already own, you were SUPER unlucky"?
What is the fun in participating in an event if you end up with nothing you can use? The value/cost and choice to participate is mute in this case as I believe the overall value and intent of the event is leaving me, and possible more feeling shorted.
You got a summoner icon, part of a cache, cores, and a blueprint. The summoner icon is immediately usable and if you don't want to do anything with the cache piece, cores, or blueprints then you can disenchant them into dust to use on a skin shard you could earn later. If you want a specific Project skin and you want it now then they are available in the shop year round for you to purchase at reasonable prices.