I had a Phillips stick blender bought for me one Christmas and the attached herb chopper was fantastic for making GG paste. The herb attachment seized up after half a dozen uses and with no receipt or guarantee, I thought I was on my own.
A few months later I emailed Phillips with the serial number, who rang me back within an hour to confirm that it was indeed still under warranty and emailed me a postal slip to send it in for repair.
The same day, before I sent it back they also told me it was an old model and so replaced it with the newest upgraded model with additional attachments.
It may not be as good as a dedicated stick blender like Waring etc, but after such excellent service I would always highly recommend Phillips for their faith in their products and their faultless after sales support.
As long as they are used as per the instructions and not run for too long continuously*, then there shouldn't be a problem with a domestic blender for making curry bases and soups, if you can't stretch to a commercial one.
*Just look at the specified limits placed on the usage of a coffee grinder