Weddingbee boards

The more I get into my wedding planning (especially the little details), the more I'm encountering a lot of conflict between family members that are helping me out.  The main reason for conflict is primarily due to different priorities.  For example, invitations are probably the lowest on my list whereas getting a great wedding band (music) is one of my biggest.  On the other hand, some family members think invitations are a HIGH priority and the other way around.  So everything is completely opposite! 

This is driving me insane!  Why?  The things that they think I should be investing in...are things I don't really care about too much.  And the more I try to resist, the more they try to butt in.  I'm so fed up.  I hope this makes sense.

Do you encounter problems due to different wedding priorities when dealing with family members, those helping you out, or your fiance?