Sometimes I do. Sometimes I have a very specific fabric in mind, but I can't find the fabric in existance. Sometimes I like the print, but its not in the right color. Sometimes I just have a color in mind, but then there are so many kinds of fabrics in that color that I can't choose or out of all those fabrics I can't find a single one I like.
And then there are the times where I find a lot of fabrics I love, but then think "Where am I going to use it in a quilt? Should I get it anyways. ......naaaah." It can be very frustrating! lol