sounds like it sat on the trainer for a while. The towel that I have stretched over mine gets soaked in that location. And man, we sweat distructive stuff. The price is not really unreasonable for a repaint/redecal, but if the color is mainstream and the rest of the bike finish is okay, you could seek out someone who could do restoration work just on the toptube.

That would make the bike a little more reasonable.