And to add on to that honestly if I put an item for sale and the first thing you do is come and complain about the price guess what? That's an automatic deal breaker for me and you're not getting the part nor will I be open to offers after such a comment. If others are willing to buy it for the price I sell it for your opinion means nothing.
First impressions are everything even though I may or may not see/deal with you again after selling an item. Like
@bbiggs54 said if you're looking for something you need to be smart, patient, and professional and one day you'll probably get what you want for a price that works for you.
You can't always expect something to be the "price" that you want it to be. Reality works very differently.