Looking at the doors, those are not cheap. They did three sets which include two actual doors and the transom each. If you've ever looked at a decent residential single front door with a transom and full wood with even a tiny amount of detail, they are 10k.
I think you'd actually be amazed at how much work it takes to make those doors. This does not speak to if IL should have purchased the doors, but they are extremely high quality.
The good news is that these doors will be around for 100 years, much longer than most things the state spends 600K on...