That's why you take a second to explain to this woman the difference between the pliers. I've done this SEVERAL times in stores, for some reason almost anywhere I go, people think I'm an employee there - probably because I'm looking at the product, checking the COO - looking at the packaging...they probably think I'm restocking shelves.
I remember shopping at a U.S. Lowes, looking at the clearing out of the U.S. made hand tools, and saw a dude checking out the foreign stuff. I suggested he check out the U.S. stuff, for cheaper prices. He couldn't believe they were getting rid of that stuff for the foreign stuff, and he could get the U.S. stuff for cheaper prices.
Maybe she wouldn't have cared, but some people need to be informed sometimes to change their mind...my brother in-law recently had NO IDEA that whole grains are better than white bread. Where the hell has he been all these years? But, I kept cool, and nicely explained why it's better.
I would have started off telling that woman:
"Oh, pliers...well over here we've got quality American made Channellocks, been around for over 100 years with a lifetime warranty. Then over here, you've got your [foreign] made plier here for half the price, but also half the quality and no resale value - if you have kids, they'll still be using those same Channellocks in 50 years then they'll pass them on to your grandkids."
Something like that....