It really doesn't seem that out of line, especially considering the rarity of the Super Star kit. Only about 100 were sold, plus it was a nice press with two extra tool heads. There aren't a lot of good options for loading .223 on a Star.
The Super Star kit was originally priced at ~$231. I'm not sure exactly when it was offered, but I figure somewhere around 1980. In todays dollars that would equate to $645.
If you look at the whole package, assuming it was purchased around 1980, it would have cost close to $2000 back then. That's over $5000 in todays dollars. Can you imagine spending over $5K to reload three calibers?