When an aquaintance, not a good friend, compliments you on your handbag and then the next question is how much did you pay for it? Why would someone ask you that question?
I wouldn't take it personally but it is a little bit rude if you think about it. I usually just feed their curiosity and tell them anyway because I simply don't care.
I think one of the reasons why people ask that question is because they want to give you a 'value'. They want to evaluate your financial status and/or how much you are willing to spend. They want to know if you are a stingy person or someone who likes to splurge. People are naturally judgmental and want to classify each other.
Or, it could be out of sheer curiosity. Maybe they want to buy one too? Lol.
ITA. If they're a fellow purse enthusiast that genuinely wants to know the price because they're interested in buying something like it, I'd probably tell them a general price range.I think it's really rude and it makes me uncomfortable when people I don't know very well ask me that. Maybe it would be ok if they were asking because they were seriously interested in buying one, but otherwise it's just tacky.