I am outraged. Today I wanted to exchange my empty Sodastream cartridge for a full one and almost fell off my feet! I had to pay 27.90 for a replacement cartridge, last year it was 16.80. This is such a cheeky price increase of 40% that I will not accept. Sodastream offers a home delivery service where the cartridge is delivered to your door for 17.90 (current promotional price 16.80). Migros will have to explain this price increase to me! I'm a "Migros child", but what the group has been offering recently in terms of prices (be it Hotelplan, Exlibris or melectronics) makes me think about making a change, which I would regret - but it can't go on like this!