I think the attitude in most people boils down to one of 3 main factors - #1- jealousy over something they cannot afford/cannot justify buying for themselves, #2 - worries that they've overspent on their own machine, and lastly for this woman in particular #3 - they want to sell you something.
I don't let snobs bother me. I'm snobby about some things myself (like I'd never wear my pajamas to the grocery store like so many people do!) so I know my snobbery is about ME, not anybody else. Snobbery is a reflection of the snob's values and issues - not yours!