Yes, I use to buy more of one or two colors than I did of other colors. I did that when I made quilts with the same block in the entire quilt. Now I like to make sampler quilts with different blocks in them. Because of this, my choices have expanded. I was pleasantly surprised one day as I folded my fabrics on their little boards that fabric that I had bought at different times really did blend together well. I believe it is because I look for colors in a certain color intensity and also buy co-ordinating fabric to go with that color intensity.