Shop for PLA and ABS-Plastics for Europe
It was quite hard to find a cheaper PLA-plastics offerer for Germany which could offer 1.75mm PLA. That is what you need for the Makerbot Replicator 2.
Today I found a shop which offers exactly that in Amsterdam for about 28 Euro / kg PLA. That is close to half as expensive than other offerings. There are additional 10 Euros for shipping, but it is nevertheless a nice offer.
Link top shop: Plastic2Print