My interior panels were looking pretty bad and i had planned to have them restored (just dashes) or simply replaced. While at the store i ran across some Dupli-Color Vinyl Paint, figured my panels couldn't get much worse so for 6.99, why not!
I've only done one panel, it was by far the worst of the bunch and I'm really pleased with the results. Would new or professionally refurbished panels look better, yup, but this really put the life back into the panels and allowed me to focus on other things for the time being.
I've added a pic for comparison, probably the best 6.99 I've spent in a while!