The promotional/coupon stacking you can do at the moment in German stores is ridiculous (in the positive meaning of the word). Say you'd like to have all 12 BrickHeadz. In the end you'll pay the regular 120 Euros, but by taking advantage of the running 3x VIP points promo, stacking the 100 VIP points coupons from the Wall Calendar, adding Mini Beetles by getting to 40 Euros (again and again) and splitting everything into multiple transactions - what you get back for your 120 Euros for 12 BrickHeadz is 960 VIP points and 3 Mini Beetles. That means: As soon as the Mini Beetle hits 24 Euros on Ebay, you'll have gotten your 12 BrickHeadz "for free".
Looking at this, TLG might be in serious trouble sales-wise at the moment. Maybe all the crappy releases from recent months already have a significant effect on investors buying very much less than before, forcing Lego to do so many (unannounced) promotional stuff that you simply HAVE to buy because something.