The dings and scratches are why you got it for $650 less than new for a relatively new guitar. I would had for you to criticize my guitar, hell the body has a big dent in in the side from the previous owner.
It was advertised as having no scratches, and there weren't on the front. There's none on the back now, either, except for this one. I went over it very carefully, and I don't remember seeing this ding. It's not big, though. I don't know why the seller sold it for so much less. There's other places selling lightly used ones for much more.
I know all this seems silly, but I like to keep my stuff looking as new as possible. The Mustang has a few stone chips that would need touch up and buffing, but otherwise it looks showroom. The interior is perfect, as is the engine bay. My guns get fine scratches from cleaning, but nothing that can't be polished out. My bike has 120,000 miles on it, but looks more like 20,000 after 24 years.
I look at "stuff" this way. To get that stuff, I had to trade away some portion of my life to pay for it. Hours, days, weeks, whatever. Time is irreplaceable. The most precious commodity. If I'm trading away my life, I'm going to make damn sure that what I traded for isn't diminished.
If it's something that has as part of its appeal its appearance, I do my best to keep the appearance up. I tried polishing and applying Meguiars Ultimate Detailer to my ex, but that just didn't work, so I divorced her.