I disagree. I didn't mind buying the first few packs in the early regions, because they cost only a few euros AND they offered (what I perceived to be) good value (full set gear of my current level, lots of kobans and combativity, etc.). Then they crossed the threshold (~10€) for me, way more money than what I'm willing to spend on any micro-transaction in any game. Especially if it offers such little value in return as those packs. They tried to get me used to the over-inflated prices gradually and failed.
If packs were still a few euros and offered the same value (scaled to my level) as early on, I'd be happy to throw my money at them every once in a while.