In part I would base your assessment of your LDS's "advice" on the following. If the LDS does not sell BP/W's, I'd ignore it. If the LDS does sell BP/W's, I'd ask further questions based on the products they carry.
It is not in your LDS' material self interest to recommend product they do not carry. However it is in their best interest to give good solid advice to their customers if they want to retain customer loyalty.
Personally I generally dive a soft backpack and wings (the SP X-Tek) because I think it gives a more secure fit of the tank to my body than the BP's I own. And the wings on it are interchangeable with my backplates should I switch to one of them.
It is not in your LDS' material self interest to recommend product they do not carry. However it is in their best interest to give good solid advice to their customers if they want to retain customer loyalty.
Personally I generally dive a soft backpack and wings (the SP X-Tek) because I think it gives a more secure fit of the tank to my body than the BP's I own. And the wings on it are interchangeable with my backplates should I switch to one of them.