I have eight Aniplex series on Blu-ray that I've purchased the less expensive UK releases for:
Fate/stay night Unlimited Bladeworks
Kiznaiver
Magi Labyrinth/Kingdom of Magic
Granblue Fantasy (Standard Edition)
God Eater (Standard Edition)
Record of Grancrest Wars (Standard Edition)
Silver Spoon
Your Lie in April
But, I eventually ended up double-dipping with the Aniplex of America sets for all but 3 of those series - Kiznaiver, Granblue Fantasy, and God Eater. So unfortunately, those are the only 3 titles I've even remotely saved any money on! And, for some of the Aniplex of America titles in my collection, I have also purchased the Aniplex of Japan releases if they include English subtitles, so I'm certainly not saving myself any money there!
I actually just posted an updated photo spread of my complete Aniplex US/UK/JP collection over on blu-ray.com two days ago, so I'll copy those pics over here into this thread, to illustrate how much money I
saved lost wasted blew on Aniplex releases over the last 10 years of anime collecting!
Aniplex of America shelves with my UK and some JP releases on the bottom shelf (Doh! I forgot to include the UK Silver Spoon CE sets!):
Aniplex of Japan releases:
AoA Durarara!! Limited Edition Lunchbox Set:
AoJ Kara no Kyoukai: Garden of Sinners Limited Edition Blu-ray Disc Box: