the BAD25 Pepsi campaign was intended to be bigger, but it was up to each individual region to decide whether they would participate. Sadly many regions declined. Even those that did decide to go with it often didn't distribute with enough volume to make the product visible, such as Canada where you had fans hunting high and low, travelling large distances to find any sign of the cans and often not finding anything at all. I wondered at the time what the point was. It was as though they distributed some just to tick a box but they (Pepsi) weren't really behind it. Or maybe they had problems with retailers not wanting to stock MJ product. It's just a guess, but there were definitely some obstacles in territories where Pepsi were supposed to be promoting BAD25.
It'll be interesting to see how many MJ cans are in the wild this time around. I would buy one if I saw one but I'm in the UK so no chance of that.