I agree about some of the unnecessary threads being opened. I know people are excited when they get the bag of their dreams, and we all love looking at the new purchases, but we really don't need to start a new thread every time a bag is purchased.
I try to use already existing threads, like the "show me your dolces, ciaos, zuccas, etc" threads for a new bag in a style already covered in a previous thread and then there is always the Collection thread that can be used to showcase new purchases. Besides, having the pics in those threads makes it easy for people to go back and research a style or print that catches their eye.