It is nice to get a bargain up to a point. Stories of "I scored a gold toggle for $5" don't sit too well with me. It seems like taking advantage of someone to me, and the buyer goes down a little in my estimation. An auction is one thing but a ridiculously low asking price is another. I guess it is a judgement for each person and their own moral compass. Sorry to sound sanctimonious.
If I ever see an Old Spice mug like yours for a price I’m willing to pay (that is, much less than it could sell for), my sanctimony won’t slow me down a bit.
On the other hand, I have given a few newbie vintage sellers more than their asking price for shaving items. I figure that a new vintage seller who gets some encouragement and information will scout out more shaving gear for my future visits.
Now the ones with a scummy, cracked Old Type in an Aristocrat case, priced at $100... should I bother to lecture them?