Did people really like the personal shops last time?
A bunch of the discounts are less than 50% so you're better off just waiting until that skin goes on a half-off sale. The skins chosen often go to your most played champions who you already own your favorite skin on. Your shop may not even have the highest tier discount due to bad RNG. And there's just really good odds that the only discounts that matter (50% and up) only are on skins you don't care to own anyways.
When people are sharing what their shops are, I find that I'd be happier with almost anyone else's shop.