Heck, I bought these books when they first came out! I was obsessed with Starbuck--the original character played Dirk Benedict--when I was a little girl. When first one came out--79 or 80--I was about 10 or 11. I think the last one came out after I graduated high school. I don't recall them being terribly well-written but they were better written than the series, for what it's worth. But it filled my school-age self with joy just to have them.
Here's a pic of the ones I've held onto for all these years. Sorry about the crappy picture quality; not the best camera ever.
I'm amazed you kept them in that quality all those years. I don't think I own anything from that age that is in any kind of condition.