I have given myself an out, I don't consider tops as unfinished. They are a finished top, they are just not quite a quilt yet. If I leave the world with a couple hundred "unfinished" tops, well -- it will be ok.
Sometimes it gets to me... So I just shove it down and start another project! I do have several projects planned and a couple of groups of fabrics collected to work with next year including Civil War prints and Metallics.
I'm ok with the number of WiPs I have. I am really trying to motivate myself to do just a few paper pieced blocks. Don't know why I'm so resistant, I actually want to do it and get that project going again before it stalls out.