When I am out on the trail looking for great things for the boutique I often come across things that are less than show room ready.  Here is what you need to do:

1.   Look at what it is and ask yourself is it cool?
 
2.  Look for damage. If it is damaged I usually I pass it up or I will  ask myself is it worth the time to fix it or will someone want it as is?
 
3.  Does it just need a good cleaning?  Most of the time this is the case and usually the reason it is for sale at a ridiculously low price. 

The next time you are thinking of getting rid of something old for something new ask yourself the question.  Do I just need to clean it?