Ya. Whats the deal with salesmen who have the nerve to try and sell stuff.
But really in the end you need to do your own home work. A sales person generally only knows the product they have and in turn only will help you with that product even if they know a lot about other brands.
Heres to put in perspective. When was the last time you were at a Ford dealer and they said. You know you should get a BMW. Its more what your looking for so go next door.