What happened to pack sales?

In the past there were discounts every now and then, and there was another SP on sale more or less weekly. But lately there have been none of those,. and I miss them. I want more packs but can't really afford them, so with random sales I could at least dream about getting more. Do they normally run a Summer sale? Or should I expect a sale on older packs when they release new contents over the next 5-6 months? Hm, guess I want the new stuff pack(s), too, this will be tough any way, LOL.