captainsolo said:
Some are actually quite good.
Which ones?
I loved, as a kid, the Pre-TV show of the same name Young Indiana Jones books. I'm reading some of them again with my 7 year old son and I can't say they're as good to me now as they were to me then... but my son seems to dig 'em.
I recently got both Dark Horse (non-Marvel) Indiana Jones Omnibuses and mostly enjoyed the stories in those. They were of varying quality, but all were better than CotKS.