In an effort to balance the last few comments, perhaps the SA's have been told to not pounce on people as they come in as many just want to browse and would be uncomfortable if approached immediately. If someone is truly shopping they can always ask for assistance surely? Personally I hate being approached unless I'm under time pressure and have a very specific item to pick up. If approached my response usually is ' I'm just browsing for now, thank you, but will have a couple of specifics in a few minutes'....
This is a very good point. Having worked in the fashion industry in NYC, I hate shopping and am very resistant to being "helped" by SAs. Also, I am a fast shopper on my own. I like it when any SA waits until I have a question and doesn't hover near-by. Plus, my wallet flies open on it's own when I enter an H store. My H SA knows this about me, thank goodness.