If I need help looking for a TV, I'll ask. I promise, I'm not shy. But if I want to just LOOK at some TV's and see what's available, please stop hovering over my shoulder and asking me if I have any questions. I don't, really. I can read the specs. If you want me to spend $400 or more on something, you're gonna have to grant me some time to chew over the options and go home and do my research before coming back. Let me do that, and I might come back and buy from you. Pester me, stalk me, or refuse to let me leave without making veiled threats that "This TV may not be here when you come back," and I'll shop online.
For its part, Micro Center guys have usually been extremely helpful when I needed it and have always left me alone once I said "Just browsing." They've also periodically looked up the part on Newegg to see if they could price-match it.