Very poor quality blender attachments with serious design flaw

Bought a stick blender and also a combined electric whisk/blender, both made by Bosch. At first glance these were good products, however.....both the stick blender attachments broke really easily, in the same place. They both (blender attachments) fit into a hole in the main body of each alliance, via a fixed white plastic sleeve which breaks incredibly easily. In our case, each blender attachment was dropped from a very low height onto a tiled kitchen floor, causing the white plastic sleeves to break. Once broken, they no longer fit into the hole in each respective appliance body. When contacting the retailer (Hirsch - who were as helpful as they could be), it was explained to us that to replace the attachment on its own would cost.....more than the entire appliance (body, attachments and all) had cost in the first place!! This is utterly ridiculous. We are now left with two appliances, one of which is useless, the other of which is only good as an electric whisk. The weak plastic sleeve on each blender attachment is a MASSIVE design flaw - I have never known anything to break and become redundant so easily and we now feel that we have totally wasted our money in choosing Bosch for these appliances. I would like some feedback on this please - we can't be the only ones for whom this has turned out to be a buying mistake.