I, like many other people here, have invested my hard earned cash in my NA account. I had to move for unforeseen circumstances, and there were so separate servers at that time anyway. I tried playing on the NA server a few times, but the latency is absolutely ridiculous.
Anyway, I'm not going to invest any cash monies in my EU account because I have no idea how long I'll be here. I would, however, GLADLY pay to transfer my account to EU, and eventually back to NA.
Long story short - Riot, you are loosing money. I can understand if perhaps the logistics of this are a bit insane, but at least be transparent about it.