There's nothing wrong with asking someone with the intention of knowing the prices of the items but if your unlucky to encounter players with badly arrogant attitudes, there no way, you can talk to it nicely unless they will acknowledge you for what you have. You know " guts, riches.etc. " There are lots and lots of that kind of people in this server, you can see it. But there also nice players, trust me. ..xD
Don't fall for it, it will not help anything in your real life anyway..