Is there a reason every skin is 1350 or more nowadays?

And by that I mean a reason outside of new particles.

Not everyone wants to spend 10 euros on a single skin, you see. I find myself hoping the next batch of skins will have some cool 750 or 975 skins in it, but to no avail. Why is that? If every skin from now on is gonna have a new voice filter or particles, wouldn't that make 1350 the new 975? I was looking forward to PROJECT: Lucian and Leona, because I like both of those champions but lack skins for them. But I'm not one to buy 1350 skins, they're generally way overpriced and outclassed heavily by 1820 skins when it comes to value, as 1820 skins have a new voiceover along with new particles and sometimes even animations while 1350 skins often only boast either a voice filter or new particles.

Anyway, I hope this doesn't sign that Riot is quitting the "plain" 975 and lower skins in exchange for flashy ones that are also almost double the price. I've found that some of the 520/750 skins are really, really cool (Prototype Viktor) and I hope Rito doesn't stray away from simple ideas in favor of monetary gain.

Yeah, fat chance.