Is there future in In shop Demonstrator of Samsung products?

I am working in a company where I was in a Technician post. Where I have to travel from one location to other customer location. Now i have got offer as a In Shop Demonstrator in my location and i do not have to travel more. So I asked about my previous company manager and he told me that there is no future in sale. He said that I have I have to fulfil target and I will have more pressure. If I did not fulfilled my target than I will get fire from the job. An even salary will be late If I could not able to acheive target. Please help me what to choose.

Dear friend,
If you were working as a technician, then it was supposed to be a technical job. Why do you wish to move out to a non-technical job? Acquiring mastery will open further job avenues, however, it may not be the case for a non-technical job. Therefore, take the call judiciously. If travel is a tedious part of your job then you may look for a technical job where travel is limited or almost nil.
Thanks,
Dinesh Divekar